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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

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.

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)

LED Driver Charging Constant Current Voltage Step Down Buck Module Feature: This module uses the LM2596 chip, high efficiency (up to 92%), low heat, can be very easily used to above 3A current, in conjunction with the original TI op amp control output current, so the overall output is very stable. This module uses the original Sanyo low ESR filter capacitor, you can make low ripple voltage to 50mV! This module uses machine placement, reflow soldering. This module is an adjustable buck module, the module can be adjusted from the blue adjustable resistor to change the output voltage. Input and output differential pressure is 2V, the minimum can be output 1.23V. Module indicated IN - (negative input), IN + (positive input), OUT - (negative output), OUT + (positive output), please note must be correct connected, otherwise may cause damage to the module. Description: Nature of the module: Non-isolated step-down module Rectification: Non-synchronous rectification Input voltage: 7V - 35V Output voltage: 1.25V - 30V Output current: Adjustable, 3A (maximum) Transfer efficiency: 92% (maximum) Switching frequency: 150KHz output ripple: 50mV (maximum) 20M Kbps Load regulation: ±0.5% Voltage regulation: ±2.5% Operating temperature: -40°C to +85°C Dimension: 48 x 23 x 14mm (L x W x H) Battery charging method: 1. Make sure the battery float voltage and charging current, the module input voltage; 2. Adjustment constant potentiometer, the output voltage is adjusted to about 5V. 3. Use the multimeter (10A current) measuring the output short-circuit current, meanwhile adjust the constant current potentiometer make the output current reaches a predetermined charge current value; 4. Turn lamp current default is 0.1 times charging current (constant current value), if you need to adjust please adjust the turn lamp current potentiometer; (generally doesn't need adjustment) 5. Adjustment constant potentiometer allows the output voltage reaches the float voltage; 6. Connected to the battery and try to charge. (1,2,3,4,5 steps are for the module input connected to the power supply, output-load battery is not connected.) LED constant current driver using method: 1. Make sure that the drive LED operating current and maximum working voltage; 2. Adjustment constant potentiometer, output voltage adjusted to about 5V. 3. Use the multimeter (10A current) measuring the output short-circuit current, meanwhile adjusting the constant current potentiometer allows the output current reaches a predetermined LED working current; 4. Adjustment constant potentiometer allows the output voltage reaches the maximum operating voltage LED; 5. Connect LED, test machine. (1,2,3,4 steps are module input connect to the power supply, output-load is not connected LED lights.) Package included: 1 x Buck module

AC-DC Isolated AC 110V / 220V To DC 5V 600mA Constant Voltage Switch Power Supply Converter Module With Shell Descriptions: The power supply is isolated industrial grade built-in power module with temperature protection, overcurrent and short circuit full protection. Features: AC85 - 264V or DC110 - 370V wide voltage input DC 5V(+/ -0.2V) 600mA isolated output Input Current: 0.0273A/115VAC 0.014A/230VAC Input surge current: 20A (230VAC) Frequency range: 50/60 Hz Operating Temperature: -30 - 70 ??br />Relative humidity: 20%- 90% Rated power: 3W Output efficiency: 80% Module size: 4.0*2.3*2.3cm Package included: 1 x AC-DC Isolated AC 110V / 220V To DC 5V 600mA Constant Voltage Switch Power Supply Converter Module With Shell

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

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

D3806 NC DC Constant Current Power Supply Step Down Module Voltage Ammeter Instruction: Click to open Introduce: This module has two operating modes: simple mode and full function. The factory setting is the simple mode, if you need to use the full functionality, you can open it. Feature: 1, Can precisely regulated output voltage and current 2, Support either buck voltage and boost voltage 3, All-digital display, easy to use 4, With a constant voltage, constant current 5, Using 4 high brightness LED, can display the output voltage, current, power and capacity and other parameters in real time 6, Automatic / manual switching display voltage, current, power, capacity and other parameters 7, Having 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-on 9, Can be one key to save the current set of voltage and current value 10, With memory storage function, can store 10 groups of parameters, and can free memory, recall 11, Boost mode input current up to 8A, so if the output voltage is higher than a lot of input, output current at this time may not be able to reach 6A, specific calculation examples, see below: Example: The input current up to 8A, when the input voltage is 24V, the input power is 192W; Output power = input power * conversion efficiency = 192W * 0.85 = 163W, if the output voltage is set at 38V, by the maximum input current limit, the maximum output current can reach about 4.289A, and continuously adjustable. Item Parameter Module type Non-isolated buck module Input voltage 10V-40V Output current 0-6A Output voltage 0-38V Conversion efficiency Up to 92% Operating frequency 150KHz Short circuit protection Constant current Operating temperature -40°C to + 85°C Control method Digital control + digital display Voltage regulator / Display resolution 0.01V Minimum power display resolution 0.001W Current regulation / Display resolution 0.001A Minimum capacity display resolution 0.001AH Output ripple ≤50mV Weight 116g Dimensions 100 x 80 x 21mm (L x W x H) Package includes: 1 x Step Down Module (The test tools does not includes)

D3806 NC DC Constant Current Power Supply Step Down Module Voltage Ammeter Introduce: This module has two operating modes: simple mode and full function. The factory setting is the simple mode, if you need to use the full functionality, you can open it. Feature: 1, Can precisely regulated output voltage and current 2, Support either buck voltage and boost voltage 3, All-digital display, easy to use 4, With a constant voltage, constant current 5, Using 4 high brightness LED, can display the output voltage, current, power and capacity and other parameters in real time 6, Automatic / manual switching display voltage, current, power, capacity and other parameters 7, Having 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-on 9, Can be one key to save the current set of voltage and current value 10, With memory storage function, can store 10 groups of parameters, and can free memory, recall 11, Boost mode input current up to 8A, so if the output voltage is higher than a lot of input, output current at this time may not be able to reach 6A, specific calculation examples, see below: Example: The input current up to 8A, when the input voltage is 24V, the input power is 192W; Output power = input power * conversion efficiency = 192W * 0.85 = 163W, if the output voltage is set at 38V, by the maximum input current limit, the maximum output current can reach about 4.289A, and continuously adjustable. Item Parameter Module type Non-isolated buck module Input voltage 10V-40V Output current 0-6A Output voltage 0-38V Conversion efficiency Up to 92% Operating frequency 150KHz Short circuit protection Constant current Operating temperature -40°C to + 85°C Control method Digital control + digital display Voltage regulator / Display resolution 0.01V Minimum power display resolution 0.001W Current regulation / Display resolution 0.001A Minimum capacity display resolution 0.001AH Output ripple ≤50mV Weight 116g Dimensions 100 x 80 x 21mm (L x W x H) Package includes: 1 x Step Down Module (The test tools does not includes)

4A 25w Electronic Load Adjustable Constant Current Aging Resistor Battery Volta Package weight: 0.11 kg Features: The current a voltage V power W capacity ah and discharge time can be displayed; Have a sound protection mechanism; Automatic statistics of discharge capacity and discharge time; Set maximum discharge Capacity (OAH) and maximum discharge time (OHP); (Realization of unattended aging experiments) Intelligent temperature-controlled fan, when the power is greater than 10W or the temperature is greater than 40 ￢ﾄﾃ fan start automatically; The use of rotary coding potentiometer, can accurately adjust the current, accurate to 0.01A, the current can be locked to prevent misoperation; Data group function: You can choose whether to add up the capacity value and running time of the previous stage; Has a powerful serial communication function. Specification: Rated supply voltage: DC5~30V Rated load voltage: DC1.5~25V Rated load current: 0~4A Discharge power: 25W Constant current accuracy: ±(1%+3) Voltage accuracy: ±(0.5%+1) Package included: 1 x Battery Tester Details pictures: Click here for more deals 4A 25w Electronic Load Adjustable Constant Current Aging Resistor Battery Volta 4A 25w Electronic Load Adjustable Constant Current Aging Resistor Battery Volta

Descriptions: The power supply is isolated industrial grade built-in power module with temperature protection, overcurrent and short circuit full protection. Features: AC85 - 264V or DC110 - 370V wide voltage input DC 3.3V(+/ -0.2V) 800mA isolated output Input Current: 0.0273A/115VAC 0.014A/230VAC Input surge current: 10A (230VAC) Frequency range: 50/60 Hz Operating Temperature: -30 - 70 ??/span> Relative humidity: 20%- 90% Rated power: 2.6W Module size: 4.0*2.3*2.3cm Package included: 3 x AC-DC Isolated AC 110V / 220V To DC 3.3V 800mA Constant Voltage Switch Power Supply Converter Module

Descriptions: The power supply is isolated industrial grade built-in power module with temperature protection, overcurrent and short circuit full protection. Features: AC85 - 264V or DC110 - 370V wide voltage input DC 3.3V(+/ -0.2V) 800mA isolated output Input Current: 0.0273A/115VAC 0.014A/230VAC Input surge current: 10A (230VAC) Frequency range: 50/60 Hz Operating Temperature: -30 - 70 ??/span> Relative humidity: 20%- 90% Rated power: 2.6W Module size: 4.0*2.3*2.3cm Package included: 5 x AC-DC Isolated AC 110V / 220V To DC 3.3V 800mA Constant Voltage Switch Power Supply Converter Module

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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:

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APPLICATION   Thermal Protectors (TP) of series 06 (normally closed) and 08 (normally open) are used in numerous electric appliances e.g. in motors, transformers and ballasts. These TPs characterize their ability to tolerate higher current load in spite of their small design. Furthermore, they are suitable to be installed into the windings, because they are very pressure- and impregnation resistant. DESIGN These switches are equipped with a high capacity contact mechanism, wherein the bimetallic disc can move freely, without the current flowing through it. An additional spring disc maintains constant contact pressure until reaching its switching temperature. The connecting lead wires are welded on, to ensure the use of the switch under high temperature and strong currents without problems. Versions: S06 / S08 with insulation cap C06 / C08 without insulation cap OPERATION If the rated switching temperature of the bimetallic disc is reached, this suddenly snaps over and opens (C06/S06) or closes the contacts (C06/C08). After cooling down to under its resetting temperature, the contact mechanism returns automatically to its initial position.

Specification: Applicable voltage range: DC3.7V-13V Current regulation range: 0.15A-3.00A Continuous discharging with 15W 5V-1A discharge resistance Features: Category: Electronic load of industrial level and long lifespan The product uses common fans with oil. For the intelligent start and stop of fans, the temperature control is around 40 Celsius degrees. It uses ball fans with long lifespan, and with fast rotation speed and strong wind, it can support unsuspended work of continuous 15W discharging. It is suitable for long-term discharging or factories to conduct product aging tests. Note: The test results of discharge resistance meet an error within 10%, so this is not an accurate tester but just for your reference. Due to severe heating, please mind your hands when using this product. Please avoid flammable and explosive objects and have someone on watch for the use. We would like to kindly remind you that we take no responsibility for all consequences caused by heated resistance. Thanks for your understanding! Package includes: 1 x USB Adjustable Constant Current Module

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:

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