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5a constant


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South Africa (All cities)
Description: 5A Constant LED Driver Battery Charging Module Voltmeter Ammeter Adjustable step-down module Specifications: Module Properties: non-isolated constant current and voltage module Rectification: non-synchronous rectification Conversion efficiency: 95% (the highest) Switching frequency: 300KHz Output ripple: 50mV (max) 20M bandwidth Load Regulation: ± 0.5% Voltage Regulation: ± 2.5% Operating Temperature: -40?テto +85??br />Voltmeter Ammeter Measurement accuracy: 0.1% Refresh rate: about 200ms / times Display: 0.28"digital tube Current Range: 0A-5A Voltage range: 5V-30V Please connect right as the printed:"IN-,IN+,OUT-, OUT+", or the Module will be burned. Package included: 1 x Constant Current/Voltage Battery Charging Module Details pictures:
R 194
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South Africa (All cities)
Buy 5A Constant Voltage Current Step Down Power Supply Module For LED Drive Lithium for R211.31
R 211
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South Africa (All cities)
Buy 5A Constant Voltage Current Step Down Power Supply Module With USB Charging Pow for R174.17
R 174
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South Africa (All cities)
Specifications: Input: IN + input positive, IN- input negative Output way: OUT + output positive, OUT- output negative Input voltage: 4-38V Output voltage: 1.25-36V continuously adjustable Output current: adjustable, maximum 5A Output Power: 75W maximum Working temperature: -40 to + 85 ??br />Operating frequency: 180KHz Conversion efficiency: up to 96% Short circuit protection: Yes (limit current 8A) Overtemperature protection: (automatically shut off the output after overtemperature) Input reverse polarity protection: None, (if necessary, please enter the string into the high current diode) Installation: four 3mm screws Module dimensions: 51 x 26 x 15mm (L x W x H) Features: 1. High power, high efficiency, 5A, low ripple; 2. Triple: (1) Use as a normal blood pressure modules with overcurrent protection capability; (2) As the various voltage lithium batteries, batteries, nickel-cadmium nickel-metal hydride batteries (battery) charger for solar panels, wind turbines and other occasions; (3) Used as a high-power LED constant current drive module; 3. With constant pressure and constant current modes, there are light indicates which mode is currently in module; 4. When used as a lithium battery charger, you can set the float voltage and the charge current size, there is light indicates is being charged or has been filled; 5. Has the current limit protection, output short circuit even if it will not burn module. 6. This module uses machine placement, reflow soldering, and each module shipments have been two hours before the aging tests to ensure high reliability. Note: When you use this product, the module inputs and outputs to the ground and do not co-together, this will cause the board power current sense resistor is bypassed, so that the module can not adjust the output current size, the case then load easy to burn power chip module. Package included: 5 x 5A constant current constant voltage LED driver module
R 346
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South Africa (All cities)
Buy 10pcs 5A Constant Voltage Current Step Down Power Supply Module For LED Drive L for R1,659.76
R 1.659
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South Africa (All cities)
Module parameters: Input voltage: 6V-32V Output voltage: 1.5-32V continuously adjustable (can only be used step-down module, the input must be greater than the output 1.5V or more) Output current: adjustable, the maximum 5A (recommended in the use of 4.5A, when exceed 3A or 35W the best to strengthen the cooling! Suggest using a small fan at the input terminal! Constant current requires an output voltage of 2V or more to be adjusted, the current regulation, only in the constant current state will work, constant current is mainly directly used to the low resistance battery charge or LED working current limit and other use, please make sure about this before you order it. Output power: up to 75W (recommended in the use of 50W, if uses large pressure difference, please reduce the power) Operating temperature: -20 to +70 degrees (pay attention to the power tube temperature, when exceed please strengthen the cooling) Operating frequency: 180KHz Conversion efficiency: up to 96% Short circuit protection: Yes, constant current Current set constant current value Over-temperature protection: Yes (over-temperature automatically turn off the output) Input reverse protection: Yes Output reverse flow: None, for charging please add a diode! Installation: 8pcs pillars, 8pcs 3mm screws Wiring method: wiring terminal or soldering terminal, VIN for the input, VOUT for the output Module size: 65.6mm x 40mm x 25mm (L*W*H) Weight: 77g Calibration method: The module has a calibration function, don't worry about measuring inaccurate problems, if you find the measurment is not inaccurate you can use the following methods calibration. Just need to calibration once for the first time! Voltage calibration: In the case of power down, press and hold the "SET" button, power on, enter the voltage calibration mode, the LCD screen starts to flash, release the set button, press the "Set" key to add, "OK" to reduce, calibrate correct input voltage, such as: the input voltage is 12.65V, then adjust the current voltage to 12.65V, after 2 seconds it automatic save, power off and exit to complete the calibration! Current calibration: For no-load current display, or current is too large! In the case of power off, press and hold the "OK" button, power on, enter the current calibration mode, the LCD screen starts to flash, release the "OK" button, press the "Set" button to add, "OK" button to reduce, calibrate correct current, such as: no load display 0.02A, then adjust to 0.00A, after 2 seconds it automatic save, power off and exit to complete the calibration! Special Note: Some customers feedback that the output voltage can not be adjusted, this is due to the factory default voltage is 20V. When you encounter this problem, please counterclockwise rotation ADJ-V potentiometer 10 laps above, until the voltage value changes, and then the module can be normal adjustment of the voltage. Note: USB output voltage and the module output voltage needs to be consistent, when the USB indicator does not light, means USB has no output, when the USB light is set, it is not fixed 5V output, when charging USB device please make sure the voltage is 5V, if higher than 5.5V screen will flash, it will be reminded to adjust the voltage, otherwise it may damage your device, USB output power is turned off by default, to ensure that mistakenly plug USB will not damage the device. Setting Description: Setting key can be set to four kinds of display mode: 1. F-0 mode: display output voltage; 2. F-1 mode: display input voltage; 3. F-2 mode: alternately display input and output voltage; 4. USB mode: display USB output voltage and turn on or off the USB output; Instructions: press the "set" button, the cycle shows four kinds of display mode, the corresponding indicator light will on/off, press the "OK" key to save and exit, press the "OK" button to switch the LCD backlight. Package includes: 1 x 5A DC-DC Adjustable Step Down Power Supply Module (Board color will send in random)
R 208
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South Africa (All cities)
Optional: Type 1: CNC power supply version Type 2: CNC power supply Modbus version Feature: Input voltage: 6V-32V Output voltage: 0-32V continuously adjustable (can only be used as step-down module, the input must be greater than the output 1V or more) Output current: Adjustable, the maximum 5A (if temperature over 60 degrees, please strengthen the cooling, there are reserved fan installation location and terminal blocks!) Output power: Up to 160W (recommended in the use of 120W, large pressure difference, please reduce the power) Operating temperature: -10 to +75 degrees (Note the use of power tube temperature, exceed the temperature please strengthen the cooling, there are reserved fan installation location and terminal) Resolution accuracy: Voltage 0.01V, Current 0.01A Conversion efficiency: up to 95% Short circuit protection: Yes, constant current the current setting of constant current value Input Anti-Reversed: Yes Output reverse flow: None, for charging please add a diode! Wiring method: Terminal VI + for the input positive, VO + for the output positive Module size: 79mm x 43mm x 46mm (L*W*H) Hole size: 76mm x 39mm (L*W) Weight: 75g Package includes: 1 x Adjustable CNC Step-down Power Supply Setting description: Output voltage setting: short press "CV" key, enter the voltage setting mode, turn the potentiometer to adjust the current voltage, press the potentiometer can switch to adjust voltage value, after adjust short press CV "key to save and exit. Output current setting: short press "CV" key, enter the current setting mode, turn the potentiometer to adjust the current value, press the potentiometer can switch to adjust voltage value, after adjust short press CV "key to save and exit. (note that when constant current, indicator will be turned to red, constant current adjustable current, the actual load output current must be greater than the set current to the constant current mode, otherwise is working as constant voltage state.) Display mode setting: short press "MODE" to switch the display mode, IN is the input voltage, OUT is the output voltage Switch output setting: directly short press the potentiometer key, can open or close the output voltage, turn off the current position display OFF words Modbus address setting (Type 2): short press "SET" key, enter the address setting mode -Id, the default is 1, turn the potentiometer to adjust the current address, range is 1-255, after adjustment and then press the "SET" key to save and exit, you can also set the address through the host computer software.
R 346
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South Africa (All cities)
Buy Constant Current Automatic Voltage Regulator 5A Step Up Step Down Module Boost Buck DC 6-35V for R230.77
R 230
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South Africa (All cities)
CONSTANT VOLTAGE; SINGLE OUTPUT CHASSIS MOUNT LED POWER SUPPLY / IP67 INPUT: 90-264VAC / 127-370VDC OUTPUT: 12V @ 0-5A 60W
R 292
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South Africa
Description: Supply: 220V EU Plug /AU 220V Plug / 110V US Plug DPS-305BF 30V 5A DC Digital Control Laboratory Adjustable Power Supply for Laptop Repair DPS series digital input adjustable DC power supply is designed for laboratory, school, production lines and electronic repair designed for use. Voltage stability is high, small ripple factor, has improved the short circuit protection and overcurrent protection. Due to the voltage value is a digital keyboard input, shorten the voltage setting time, completely overcome the traditional potentiometer adjustment poor contact caused by voltage instability phenomenon. The internal power supply containing electronic switch, can conveniently open the output load. DPS305BM/BF have the same function, but different current precision. DPS305CM/CF have the same function, but different current precision. DPS305CM/CF have BM/BF all functions,  in addition they have the storage and combination lock function. DPS - 305 BM/CM: Four digit current display measuring accuracy: 0000-0.450A, ±0.001 A                                                                                                                              0.450-5 A, ±0.01 A DPS - 305 BF/CF: Five digit current display measuring accuracy: 00000-0.0450A, ±0.0001A                                                                                                                          0.0450-0.450A, ± 0.001A                                                                                                                          0.450-5 A, ±0.01 A DPS-305BM in SKU144061     DPS-305BF in SKU144068 DPS-305CM in SKU144065    DPS-305CF in SKU144070 Specification: 1, rated working conditions and dimensions Power supply voltage 220V + 10%50 / 60Hz Working conditions: 0-40 temperature relative humidity 80% Storage temperature: - 10-70 C 70% relative humidity Dimensions: 265 x 128 x 150mm (D * W * H) 2, regulated state parameters The voltage output from 0 to 30V can be continuously adjusted (to distinguish the value of 0.1V) The precision of output voltage: + 0.1V Voltage stability: Load stability: Recovery time: 100uS Ripple noise voltage: Temperature coefficient: 3, a constant current state parameters Constant current value: 305 CM 5A Ma constant current maximum 500 mA 303CM 3A Ma constant current maximum 500 mA Constant current output current from 0 to the nominal value of continuous adjustable (to distinguish the value of 0.01A) Constant current output accuracy: + 0.01A (MA constant current precision: + 1mA) The current stability of the Load stability Ripple noise current 4, current and voltage display accuracy Voltage display accuracy: + 0.1V (constant current state) Current display accuracy: + 0.01A (constant pressure) Ma current display accuracy: + 1mA (constant pressure) 5, storage capacity Storage and call ten current,
R 3.223
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South Africa (All cities)
Module parameters: Scope: High-power LED constant current driver, rechargeable lithium batteries (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, nickel-cadmium nickel-metal hydride batteries (battery) charging, solar panels, wind generators Input voltage: 7-40V Output voltage: continuously adjustable (1.25-35V) (applied to the input voltage is higher than the output voltage applications can boost) Output Current: 8A, 10A maximum time within the (power tube temperature exceeds 65 degrees, please add cooling fan, 24V 12V 5A turn within generally be used at room temperature without a fan) Constant Range: 0.3-10A (adjustable) module over 65 degrees, please add fan. Turn lights Current: current value * (0.1), turn the lamp current and constant value linkage, such as constant value of 3A, turn the lamp current is set to a constant current of 0.1 times (0.1 x 3A = 0.3A), when the constant 2A, when adjusted to the current value, then turn the lamp current constant current of 0.1 times (0.1 x 2A = 0.2A). This version is a fixed 0.1 times (actually turn the lamp current value is probably not very accurate) is full of instructions for charging. Minimum pressure: 1V Conversion efficiency: up to about 95% (output voltage, the higher the efficiency) Operating frequency: 300KHZ Output Ripple: about the ripple 50mV (without noise) 20M bandwidth (for reference) Input 24V Output 12V 5A measured Operating temperature: Industrial grade (-40 ??to + 85 ?? (please note the actual use of the power tube temperature, the temperature is too high, please enhance heat dissipation) No-load current: Typical 20mA (24V switch 12V) Load regulation: ± 1% (constant) Voltage Regulation: ± 1% Constant accuracy and temperature: the actual test, the module temperature changes from 25 degrees to 60 degrees, the change is less than 5% of the current value (current value 5A) Dynamic response speed: 5% 200uS Potentiometer adjustment direction: clockwise (increase), counterclockwise (decrease) Indicator: color indicator, charging indicator light red, fully charged light green (no load is green) Output short circuit protection: Yes, constant current (constant current setting values) Input reverse polarity protection: None, Output anti-anti-perfusion: no, for charging the battery needs additional two diodes! Connection: Terminals Package included: 3 x DC-DC Step Down Adjustable Power Supply Module
R 343
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South Africa
B3606 NC Digital DC-DC Step Down Buck Module Constant Voltage Current Feature: 1. Uses advanced microprocessor, can precisely regulate the output voltage and current 2. With memory save function, can store 10 groups parameters, and can freely store, recall 3. Fully digital display, easy to use 4. Has a constant voltage, constant current status 5. Uses four high-brightness LED, can display the output voltage, current, power and capacity and other parameters in real time 6. Auto / manual switch display voltage, current, power, capacity and other parameters 7. Has an output (OUT), constant voltage (CV), constant current (CC) indicator, you can view real-time working status 8. You can set whether to automatically output after power 9. Can be a key to save the current values you set Parameter: Module Properties: Non-isolated step-down (BUCK) Input voltage: 6V-40V Output current: 0-6A Output voltage: 0-36V Conversion efficiency: up to 92% Operating frequency: 150KHz Short circuit protection: Constant Operating temperature: -40 ° C to + 85 ° C Control: Digital control + Digital display Voltage regulator / Display resolution: 0.01V Power display minimum resolution: 0.001W Current regulation / Display resolution: 0.001A Capacity display minimum resolution: 0.001AH Output ripple: ≤50mV Weight: 116g Dimensions: 80 x 66 x 33 mm Note: No input reverse polarity protection, if you need please add install diode. Properly connected input and output, non-reverse, reverse will burn the module. This module is a step-down module, input is higher than output 1.5V or more. Output under 5A just need natural cooling, output 5A above shall enhance heat dissipation. Manual download: Package included: 1 x B3606 CNC Digital DC-DC Step Down Module
R 347
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South Africa (All cities)
Buy RIDEN DPS3005 32V 5A Communication Function Constant Voltage Current Step for R770.74
R 770
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South Africa (All cities)
Buy 50V 5A Digital Controlled Step-down Adjustable Power Supply Module Constant Voltage and Current Mete for R420.00
R 420
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South Africa (All cities)
Features: Intelligent temperature control. Double adjustment design. 35W power continuous discharge. Industrial grade long life. Voltage:1-25V Current: 0.1-4.5A Real-time monitoring. Voltage display, current display, capacity display, electrical voltage display, power display, timing display. Power Down Data Retention. Charging time protection. Support Qualcomm QC2.0 compatible QC3.0 fast charging voltage test. One screen multi group data Display. Note: If you need to test Qualcomm QC2.0/QC3.0 fast charging voltage (5V, 9V, 12V, 20V) and requires a combination of our QC2.0/QC3.0 trigger can test, can’t directly read Qualcomm QC2.0/QC3.0 fast charging voltage (5V, 9V, 12V, 20V). 35W power continuous discharge,voltage; 1-25V, current; 0.1-4.5A 2. using 40 x 40 x 20MM copper roll fan, low noise, strong wind, 3.6063 aerospace aluminum 40 x 40 x 10MM aluminum radiator., a strong cooling, to protect the life of the load, 4.support iphone5s / 6s, Android Mirco usb, MINI USB, Type-c usb interfaces current test, By current size, you could distinguish charge data cable quality is good or bad.4 USB tester function to facilitate the test charging voltage and current size. Package Included: 1 x JUWEI QC2.0/3.0 35W USB Electronic Load Detail Pictures:
R 421
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South Africa (All cities)
20 Pcs 5A 1.2V To 32V LM338K LM338 Voltage Regulator Feature: Module: LM338K Encapsulation: TO-3 Output Voltage range: 1.2V ~ 32V Output Current: 5A Output is short-circuit protected Current limit constant with temperature Quantity: 5 pcs Size: 4 x 2.5 x 1cm(L x W x H) Weight: 11g Package included: 20 x LM338K voltage regulator
R 270
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Port Elizabeth (Eastern Cape)
Description: DC 12V 1A 2A 3A 5A 8.5A 10A 12.5A 15A 20A 30A Switching Power Supply Adapter Power: 12W 24W 36W 60W 100W 120W 150W 180W 240W 360W Input Voltage: AC100V-265V Output Voltage: DC 12V Output Current: 1A~30A Shell Material: Metal case / Aluminum case Safety Compliance: FCC / CE /Rohs High price-effective, reliability with industry standards Built-in over voltage, over current, and short circuit protection Working Temperature: 0~40C Storage Temperature: -20~60C Ambient Humidity: 0~95% Non-Condensation Features: Built-in over voltage, over current, and short circuit protection PWM design, make sure the stability and high efficiency of power supply. Anti-jamming, passed EMC test, wave less than 20MV. Constant voltage output, assume stable power supply for LED lightings to reach long lifetime Typical Applications LED Strip power supply Security surveillance industry Other industrial applications Items Available: 100 1)The Best Prices and Top-Quality ON 1STOP LED PE. 1STOP LED Import offers you best range of LED lights, lamps and bulbs for your home. Our products create perfect light quality for every occasion. Feel yourself at home with LED light The right light is quality light that lasts longer * Energy efficient Longer lifetime and uses up to 90% less energy than traditional sources The Best Energy-efficient Solutions For Any Home Or Office. Types: LED Lighting, Floodlights, Downlights, Ceiling Lights,Industrial Lights, Tube Lights, Panel Lights, Bulbs,Led strip,Led Bar light. 2) * Hikvision turbo hd bullet camera and HD DVR also Available Here. * HiLOOK CAMERA Suerior Performance-to-Price Surveillance Looking for High Performance Video Surveillance?Looking for low prce security? look at HiLOOK. HiLook, HiKvision's offshoot brand, hits the bullseye for the entry-level video surveillance market, providing every cost-dffective,easy-to-use and reliable products and services. Check out hikvision web https://www.hikvision.com/en/Products/HiLook Address 1STOP LED Lights * 301 Cape Rd Newton Park Shop3 Tel: 041 363 0636 * 527 Cape Rd Linton Grange Shop4 Tel: 041 360 0086 Email:1stop.ledlights@gmailcom View Facebook https://www.facebook.com/1stop.led.tempest/ https://www.facebook.com/Hilookhikvisionlintongragne/ Please Not: all advertisement and pictures they differ in prices, please Call for the right price.
R 80
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Port Elizabeth (Eastern Cape)
Description: DC 12V 1A 2A 3A 5A 8.5A 10A 12.5A 15A 20A 30A Switching Power Supply Adapter Power: 12W 24W 36W 60W 100W 120W 150W 180W 240W 360W Input Voltage: AC100V-265V Output Voltage: DC 12V Output Current: 1A~30A Shell Material: Metal case / Aluminum case Safety Compliance: FCC / CE /Rohs High price-effective, reliability with industry standards Built-in over voltage, over current, and short circuit protection Working Temperature: 0~40C Storage Temperature: -20~60C Ambient Humidity: 0~95% Non-Condensation Features: Built-in over voltage, over current, and short circuit protection PWM design, make sure the stability and high efficiency of power supply. Anti-jamming, passed EMC test, wave less than 20MV. Constant voltage output, assume stable power supply for LED lightings to reach long lifetime Typical Applications LED Strip power supply Security surveillance industry Other industrial applications Items Available: 100 1)The Best Prices and Top-Quality ON 1STOP LED PE. 1STOP LED Import offers you best range of LED lights, lamps and bulbs for your home. Our products create perfect light quality for every occasion. Feel yourself at home with LED light The right light is quality light that lasts longer * Energy efficient Longer lifetime and uses up to 90% less energy than traditional sources The Best Energy-efficient Solutions For Any Home Or Office. Types: LED Lighting, Floodlights, Downlights, Ceiling Lights,Industrial Lights, Tube Lights, Panel Lights, Bulbs,Led strip,Led Bar light. 2) * Hikvision turbo hd bullet camera and HD DVR also Available Here. * HiLOOK CAMERA Suerior Performance-to-Price Surveillance Looking for High Performance Video Surveillance?Looking for low prce security? look at HiLOOK. HiLook, HiKvision's offshoot brand, hits the bullseye for the entry-level video surveillance market, providing every cost-dffective,easy-to-use and reliable products and services. Check out hikvision web https://www.hikvision.com/en/Products/HiLook Address 1STOP LED Lights * 301 Cape Rd Newton Park Shop3 Tel: 0413630636 * 527 Cape Rd Linton Grange Shop4 Tel: 0413630636 Email:1stop.ledlights@gmailcom View Facebook https://www.facebook.com/1stop.led.tempest/ https://www.facebook.com/Hilookhikvisionlintongragne/ Please Not: all advertisement and pictures they differ in prices, please Call for the right price.
R 80
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South Africa (All cities)
  General Material aLUMINUM ALLOY Form Color Silver Quantity 1 part Specification speed voltage AC100-220V Output: DC 12V Operating current 5A Connector Type Other Other features Other features Anti-interference; approved electromagnetic compatibility test;  82% efficiency;  Over voltage, short circuit, overload protection; Constant output stable power with long service life. Dimensions & Weight dimensions 4.37 x 3.07 x 1.42 inches (11.1 cm x 7.8 cm x 3.6 cm) Weight 5.75 oz (163 g) packing List 1 x power converter
R 71
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South Africa
1.25-32V DC Adjustable Power Step Down Module With DIY Case More information:  http://forum.Racer Gadgets.com/forum-topic-88337.html Description: Onboard voltmeter, ammeter, power meter Onboard USB interface (note: USB output voltage and the module output voltage is consistent, not fixed 5V output, To make sure the front USB device charging transferred to 5V, or else it may damage your equipment) High power, high efficiency, 5A, low ripple Use as a normal blood pressure modules with overcurrent protection capability As various voltage lithium batteries, batteries, nickel-cadmium nickel-metal hydride batteries (battery) charger for solar panels, wind turbines and other occasions Use a high-power LED constant current drive module With a constant voltage and constant current modes, the module has a light indicates which mode is currently in When used as a lithium battery charger, you can set the float voltage and charge current, there is light indicates that it is charging or is already full Having a limiting protection Feature:   Input voltage: 5-36V Output voltage: 1.25-32V continuously adjustable (can only be done step-down module, input must be greater than the output 2V above) Output current: adjustable, 5A (recommended for use within 4.5A, constant need to adjust the output voltage of 2V or older to current regulation, only in the constant state will work, and if used the red phone, not how much current regulation, the red phone number, and constant low resistance mainly to charge the battery directly or limiting the use of current limiting LED work, but also hope that buyers know.) Output Power: Max 75W (recommended for use within 50W, big differential pressure to reduce power use, please) Working temperature: -40 to + 85 degrees Operating frequency: 180KHz Conversion efficiency: up to 96% Overtemperature protection: (automatically shut off the output after overtemperature) Input reverse polarity protection: None, (if necessary, please enter the string into the high-current diode) Connection: terminals or solder terminals, V-IN is the input, V-OUT output Module size: 68.2mm x 38.8mm x 15mm Package included: 1 x 1.25-32V DC Adjustable Power Step Down Module 1 x DIY Case  (The Case is For DIY, Delivery of spare parts)
R 286
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South Africa (All cities)
Buy 3pcs DC-DC 5-32V to 0.8-30V Power Supply Step Down Module Adjustable Buck Regulator 5A Constant LED for R263.00
R 263
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South Africa (All cities)
Buy 2Pcs DC-DC 5-32V to 0.8-30V Power Supply Step Down Module Adjustable Buck Regulator 5A Constant LED for R266.00
R 266
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South Africa (All cities)
Buy 10pcs DC-DC 5-32V to 0.8-30V Power Supply Step Down Module Adjustable Buck Regulator 5A Constant LED for R638.15
R 638
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South Africa (All cities)
Buy 10pcs DC-DC 5-32V to 0.8-30V Power Supply Step Down Module Adjustable Buck Regulator 5A Constant LED for R506.00
R 506
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South Africa (All cities)
Buy 5pcs DC-DC 5-32V to 0.8-30V Power Supply Step Down Module Adjustable Buck Regulator 5A Constant LED for R299.00
R 299
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South Africa (All cities)
XL4005E1 A 300KHz 32V Buck DC to DC Converter SMD The XL4005 is a 300KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 5A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. When short protection function happens, the operation frequency will be reduced from 300KHz to 60KHz. An internal compensation block is built in to minimize external component count. Features 1. Wide 5V to 32V Input Voltage Range 2. Output Adjustable from 0.8V to 30V 3. Maximum Duty Cycle 100% 4. Minimum Drop Out 0.6V 5. Fixed 300KHz Switching Frequency 6. 5A Constant Output Current Capability 7. Internal Optimize Power MOSFET 8. High efficiency 9. Excellent line and load regulation 10. TTL shutdown capability 11. EN pin with hysteresis function This item is available in stock and is not drop shipped. This avoids delays, customs and extra VAT.
R 31
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South Africa (All cities)
1.5A CONSTANT CURRENT SWITCHING REGULATOR LED DRIVER WITH ON/OFF FUNCTION; DIMMING CAPABILITY; 3-40V INPUT
R 37
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South Africa (All cities)
CONSTANT CURRENT SINGLE OUTPUT LED DC-DC CONVERTER; INPUT: 9-56VDC OUTPUT: 2-52VDC 1.5A. BUILT IN DIMMING CONTROL
R 136
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South Africa (All cities)
Calibration method: The module with a calibration function, do not worry about the measurement display is not accurate, If you find that the display is not accurate you can use the following method of calibration. Just use the calibration once for the first time! Voltage calibration: In the case of power off, press and hold the "Setup" button, power on, enter the voltage calibration mode, the LCD screen starts flashing, release the set button, press the "Settings" button to increase, "OK" to decrease, the input voltage of the calibration for the correct. Such as: the input voltage is 12.65V, then the voltage will be adjusted to 12.65V, after 2 seconds will automatic preservation, power off and exit the calibration is complete! Special Note: If the first use of the output voltage can not be adjusted, because the module factory, the default output voltage is 20V or so. When you encounter this problem, please counterclockwise rotation ADJ-V potentiometer more than 10 laps, until the voltage value changes, and then you can use the normal regulation of the voltage. Feature: Input voltage: 7V-36V Output voltage: 1.5-35V continuously adjustable (can only be used to do buck module, the input must be greater than the output 1.5V or more) Output current: Adjustable, the maximum 10A (recommended used within 8A, the 5A or 70W below in normal temperature can be natural cooling, when exceed please strengthen the cooling! Recommend add a small fan! Constant current needs to output voltage above 2V can be adjusted, current regulation, only in the constant current state will work.) Output power: 150W maximum (recommended used within 100W, large pressure difference use please reduce power) Operating temperature: -20 to +75 degrees (Note the use of power tube temperature, when exceed please strengthen the cooling) Operating frequency: 300KHz Conversion efficiency: up to 95% Short-circuit protection: Yes, the constant current the current setting of constant current value. Input reverse protection: No, if necessary, please add a diode on your own! Output anti-reflux: No, for charging, if necessary, please add a diode on your own! Wiring: Terminals or soldering terminals, IN for the input, OUT for the output Module size: 80 x 53 x 35mm (L*W*H) Weight: 132g Setting description: Setting display mode, divided into three types: F-0 mode: Display the output voltage; F-1 mode: Display the input voltage; F-2 mode: Alternating display input and output voltage; Press the "SET" button to cycle show the three display modes. The corresponding LED will be on or off. Press "OK" button to save and exit. Press "OK" key to switch the LCD backlight. F-0 mode: Display the output voltage: F-1 mode: Display the input voltage: F-2 mode: Alternating display input and output voltage: Applications: 1. Used as an ordinary step-down module with overcurrent protection Instructions: 1) Under no load condition, adjust "ADJ-V" of constant voltage potentiometer to make the output voltage reach the voltage value you want; 2) Direct short-circuit module output (find a thick wire or tweezers shorted to the output, Note: short-time do not adjust the voltage), then adjust the "constant current potentiometer ADJ-I" to make current value reaches the preset over-current protection value; or connected to the load can also adjust the current. (Such as on-board ammeter shows the current value is 4A, then the module maximum current is limited to 4A, when the current to 4A, the constant current red indicator light) 3) Connected to the load, work. 2. Used as a battery charger Instructions: 1) Determine the battery float voltage and charge current; (If the lithium battery parameters is 3.7V / 2200mAh, then the float voltage is 4.2V, the maximum charge current 1A, or 2200mA) 2) Under no load conditions, adjust the "constant voltage potentiometer ADJ-V" so that the output voltage reach to float voltage; 3) Direct short-circuit module output (find a thick wire or tweezers shorted to the output, Note: when short-circuit do not adjust the voltage), then adjust the "constant current potentiometer ADJ-I" to make the current value to the preset value of the charging current; or connected to the load can also adjust the current. 4) Charging turn lights current factory default is 0.1 times charging current; (battery during charging the current is gradually reduced, and gradually from constant current charging to constant voltage charging, if the charge current is set to 1A, then when the charge current is less than 0.1A, the charging yellow indicator light is off, full of charge blue light is lit, then the battery charge is complete), when charging is completed, please disconnect the battery terminal, then disconnect the input to prevent the battery backflow damaged the module! 5) Connected to the battery, charging. 3. Uesd as a constant current LED driver module Instructions: 1) Determine that you need to drive the LED operating current and maximum operating voltage; 2) Under no-load conditions, the regulation "constant voltage potentiometer ADJ-V" so that the output voltage reach to LED operating voltage; 3) Direct short-circuit module output (find a thick wire or tweezers shorted to the output, Note: short-time do not adjust the voltage), then adjust the "constant current potentiometer ADJ-I" so that the current value reach to the preset LED operating current; or connected to the load can also adjust the current. 4) Connected to the LED, and test. Note: The constant current adjustable current, the actual load current must be greater than the set current to enter the constant current mode, otherwise is the constant voltage state of work, rather than the current transferred to 2A, that means connected to any device has changed to 2A. Package includes: 1 x 10A DC-DC LCD Adjustable Step Down Module
R 280
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South Africa (All cities)
Specification: Module name: 250W boost static current module Module properties: non-isolation boost module (BOOST) Input voltage: DC 8.5-48V Input current: 10A (MAX), if exceeds 8A, please strengthen the heat dissipation Static working current: 10mA (12V up 20V, the higher the output voltage is, the higher the static current will increase) Output voltage: 10-50V continuous adjustable if necessary (default output 19V delivery) Output current: 10A MAX, if over 6A please strengthen heat dissipation. (Related to the input and output voltage difference, the larger the voltage difference is, the smaller the output current is) Constant current range: 0.2-8A Output power = input voltage * 10A, for example: input 12V * 5A= 60W, input 24V * 5A = 120W, input 36V * 5A = 180W, input 48V * 5A= 240W If you need more power, you can use two modules in parallel, such as the output of 10A, which can be connected in parallel with two modules, transfer the current of each module to 5A. Working temperature: -40 - +85??(please strengthen the heat dissipation when the ambient temperature is too high) Work frequency: 150KHz Conversion efficiency: maximum 96% (efficiency is related to input/output voltage, current, voltage difference) Over-current protection: yes (if more than 13A, it will automatic reduce the output voltage, a certain range of errors) Input reverse connection protection: yes, (less than 5A if you need more reverse connection current in the input string) Install mode: 4 3mm screw holes Connection mode: wiring output Module size: 69 x 35mm The adjustment method of output voltage/current: 1. Adjust the RV1 potentiometer according to your battery or LED, set the output voltage you need. For example, 10 series of LED voltage adjust 37V. 2. Turn the RV2 potentiometer around 30 times clockwise, and set the the minimum output current, connect the LED, and adjust the RV2 potentiometer to set the current you need. Note: please do not adjust the current in the short circuit, the circuit structure of the boost module cannot be adjusted in the short circuit. Application scope: 1. Make a stable power supply, input 12V, and output can be adjustable 12-50v. 2. Power supply for your electronic equipment, can set output value according to your system voltage. 3. Power supply for your laptop, PDA or various digital products as the on-board power supply. 4. DIY a large power laptop mobile power supply with a large lithium battery pack of 12V capacity, let your laptop go wherever it goes. 5. Stabilized solar panels. 6. Charge battery, lithium battery, etc. 7. Drive high-power LED lights. Package included: 1 x Boost power module
R 144
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