Sink board

Buy 10PCS Positive And Negative Plug USB 4p Board End Male Sink Board SMT Double-Sided Plug Two Straight for R134.14

Buy 10PCS Positive And Negative Plug USB 4p Board End Male Sink Board SMT Double-Sided Plug Two Straight for R165.15

2Pcs 150x60x25mm Aluminum Heat Sink Heatsink Cooling For Chip IC LED Power Memory Transistor Description: Function of this aluminum heat sink is to cool down the board and make it operate safely. The aluminum heat sink can reduce the risk of hardware failure because of overheating. Feature: Quantity of blade: 24 Material: Aluminum Color: Silver Blade thickness: 1mm Base plate thickness: 2mm Size: 150 x 60 x 25mm Application: Various mini DC converter circuit board, LED, Power IC, Transistor etc. Package included: 2 x Aluminum heat sink 150 x 60 x 25mm

- CNC Shield Board Version: 3.0 Color: Red Size(L*W*H): 68 x 53 x 18 mm Voltage: DC 12~36 V (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.) Features: 1. Uses removable A4988 or DRV8825 compatible stepper drivers. 2. The extension board can be used for carving machine, 3 d printer driver expansion board 3. GRBL 0.8 compatible. (Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals) 4. PWM Spindle and direction pins,4-Axis support (X, Y, Z, A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13) 5. Compact design. Stepper Motors can be connected with 4 pin molex connectors or soldered in place. 6. Please note that this is an unassembled kit and Basic soldering skills are needed. - A4988 Stepper Motor Driver Color: Red Size(L*W*H): 20 x 15 x 10 mm Thermal shutdown circuitry: Yes Crossover-current protection: Yes Ground fault protection: Yes Load short-circuit protection: Yes Compatible logic supply: 3.3V and 5 V Five selectable step modes: full, 1/2, 1/4, 1/8 and 1/16 Features: 1. Mix with slow current decay modes. 2. Internal UVLO and Low RDS (On) Output. 3. Automatic current decay mode detection/selection. 4. Synchronous rectification for low power dissipation. 5. Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. - Uno R3 Board MCU: ATmega328 Clock speed: 16 MHz USB interface: ATmega16U2 Operating voltage: 5 V I-I / O pin output current: 40 mA max 3.3 V output current: 150 mA max Digital I/O pins: 14 (including 6 with PWM capability) Analog input pins: 6 EEPROM: 1 kB Static RAM (SRAM): 2 kB Flash memory: 32 kB Size(L*W*H): 68 x 53 x 10 mm Click to download universal course Package included: 1 x Uno R3 Board 1 x CNC Shield Board 4 x A4988 Stepper Motor Driver 4 x Heat Sink 1 x USB Cable 1 x 40-Pin Row Needles

Description: Function of this aluminum heat sink is to cool down the board and make it operate safely. The aluminum heat sink can reduce the risk of hardware failure because of overheating. Will cool more LEDs if work with a fan Material: Aluminum Color: Black Weight: 20g Size: 40 x 40 x 11mm Application: LED, Power IC, Memory, Transistor etc. Package included: 10 x Aluminum heat sink 40 x 40 x 11mm

Description: Function of this aluminum heat sink is to cool down the board and make it operate safely. The aluminum heat sink can reduce the risk of hardware failure because of overheating. Will cool more LEDs if work with a fan Material: Aluminum Color: Black Weight: 20g Size: 40 x 40 x 11mm Application: LED, Power IC, Memory, Transistor etc. Package included: 30 x Aluminum heat sink 40 x 40 x 11mm

Specification: Product name: Aluminum heat sink Materials: Aluminum Size: 100mm x 41mm x 8mm (L*W*H) The quantity of blade: 25pcs Used for: Various mini DC converter circuit board, LED, Power IC, Transistor etc. Package includes: 1 x Aluminum Heat Sink

Specification: Product name: Aluminum heat sink Materials: Aluminum Size: 100mm x 41mm x 8mm (L*W*H) The quantity of blade: 125pcs Used for: Various mini DC converter circuit board, LED, Power IC, Transistor etc. Package included: 5 x Aluminum Heat Sink

Description: Is your LattePanda running hot and throttling? This heat sink and fan combo will cool the CPU for smooth performance. The fan keeps the unit running at a stable temperature. The 2-Pin jumper wire makes it easily to connect with the CN2 headers on the board. This fan is low noise and has a thermal pad on the back that can stick on the metal shield on the board. With its aluminum casing, heat from CPU will be absorbed fast, giving you better performance. This is a simple and effective way to make the LattePanda cool! Feature: Operating Voltage: 5v Operating Current: 0.14A Rated Speed: 6500 RPM Interface Type: 2.54mm 2-Pin DuPont Female Connector Dimension: 34.5 * 34.5 * 7.2 mm/1.36 * 1.36 * 0.28 inches Note: Please pay attention to wire polarities Red -> 5V Black -> GND Package included: 1 x Cooling Fan

100 x 25 x 10mm Aluminum Heat Sink Feature: 1. To provide the effective volume of the device to occupy space. 2. The maximum temperature that can be played by the device node. 3. It can reduce the power loss of the device. 4. It can improve the environment (temperature, and air flow rate). Application: IC circuit board,motherboard,MOS tube,TO-3P large power tube,heat sink,electronic audio,power amplifier,etc Specification: Height: 10mm Width: 25mm Length: 100mm Material: aluminum Package included: 1 X Aluminum Heat Sink

Feature: 1. To provide the effective volume of the device to occupy space. 2. The maximum temperature that can be played by the device node. 3. It can reduce the power loss of the device. 4. It can improve the environment (temperature, and air flow rate). Application: IC circuit board,motherboard,MOS tube,TO-3P large power tube,heat sink,electronic audio,power amplifier,etc Specification: Height: 10mm Width: 25mm Length: 100mm Material: aluminum Package included: 3 x Aluminum Heat Sink

DIY TDA2030A Audio Amplifier Board Kit Mono Power 18W DC 9V-24V Features: TDA2030A is widely used as Hi-Fi amplifier manifold in many computer active speakers. Easy Installation. It has the function of thermal shutdown, current limiting. Minimum transmission distortion Specifications: Output power: Maximum 18W Supply voltage: DC 9V-24V (recommended DC 12V, this voltage to the heat sink requirements are very low;) Maximum supply of this board is actually up to 40V, but you need to change the board's own electrolytic capacitor C1, the capacitor voltage value is higher than supply voltage can be use.) Quiescent current: about 25mA (disconnect to tone, connect to 8Ω speaker, 12V power supply.) Speaker impendance: 4Ω-8Ω Total harmonic distortion: THD 0.08% (Po=0.1 to 14W, RL=4Ω) SNR: 94dB-106dB (1W-15W) Heat: The higher the supply voltage, the great the volume, the higher the heat Note: This is DIY kit, you need to solder it by yourself! Package includes: 1 x DIY TDA2030A Audio Amplifier Board Kit

Description Overview This driver uses Infineon chips BTS7960 composed of high-power drive full H-bridge driver module with thermal over-current protection. Double BTS7960 H-bridge driver circuit, with a strong drive and braking, effectively isolating the microcontroller and motor driver! High-current 43A. Specifications Double BTS7960 large current (43 A) H bridge driver 5V Isolate with MCU, and effectively protect MCU 5V Power Indicator on Board Voltage Indication of Motor Driver Output end Can Solder Heat Sink Just need four lines from MCU to driver module (GND. 5V. PWM1. PWM2) Size: 4 x 5 x 1.2 cm; Able to reverse the motor forward, two PWM input frequency up to 25kHZ Two heat flow passing through an error signal output Isolated chip 5V power supply (can be shared with the MCU 5V), can also use the on-board 5V supply The supply voltage 5.5V to 27V Maximum Current: 43A Input level: 3.3V-5V More Products View More Products

Specification: Heatsink Material: Aluminum and copper Blast capacity: 5m^3/h Voltage: DC 5V Current: 0.2A Convolution: 13200RPM Note: Package does not includes the case and transparent case and main board. Package included: 6 x Heatsink 3 x Fan

TDA2030A 2.0 Audio Amplifier Module Board 18W*2 Double Track DIY Kit Features: This circuit consists of two channels, including W101 as the volume potentiometer, W102 bass adjust potentiometer, W103 for high adjust potentiometer. The input audio signal after the volume and tone control by the C106, C206 sent to TDA2030 integrated audio power amplifier. Note: This is a DIY kit, you need to have some knowledge of electronics and ability. This kit does not provide instruction. Schematic: Click to open Specification: Working voltage: AC9 ~ 12V Output power: Left and right channel 18 w x2 (horn) Output impedance: 4-8 PCB size: 12 x 5.5 cm(L*W) Package list: Component Label Value Number Diode (1N4407) D1, D2, D3, D4 1N4007 4 Resistance R101,R201 RTI-0.25~1K 5% 2 Resistance R102,R202 RTI-0.25~10K 5% 2 Resistance R103,R203 RTI-0.25~1.5K 5% 2 Resistance R104,R204 RTI-0.25~5.6K 5% 2 Resistance R105,R205 RTI-0.25~1K 5% 2 Resistance R106,R206 RTI-0.25~1K 5% 2 Resistance R107,R207 RTI-0.25~33K 5% 2 Resistance R108,R208 RTI-0.25~47K 5% 2 Resistance R109,R209 RTI-0.25~300K 5% 2 Resistance R110,R210 RTI-0.25~10K 5% 2 Duplex Potentionmeter W101, W102, W103 50K 3 Electrolytic Capacitor C1, C2, C3, C4 2200uf/25V 4 Polyester Capacitor C5, C6 0.1uf 2 Ceramics Capacitors C101, C201 4700pf 2 Ceramics Capacitors C102, C202 22nf 2 Ceramics Capacitors C103, C203 220nf 2 Ceramics Capacitors C104, C204 22nf 2 Ceramics Capacitors C105, C205 10nf 2 Ceramics Capacitors C106, C206 47nf 2 Ceramics Capacitors C107, C207 0.1uf 2 Aluminum Heat Sink / / 2 TDA2030A IC1, IC2 TDA2030A 2 M3 Screw /

Functional Description:   MOS FET electronic switch module, you can use low-voltage and small current to control high-power equipment, motors, light bulbs, high-power LED. For example: you want a device output 5V signal, control a 12V motor switch. This module can be achieved.   Feature:   Input control voltage 3.3V-12V Output control voltage: 5-36V Board using optocoupler isolation, 2-terminal voltage completely separate. Input control using 2 pins to control, one connect ground one connect control to direct control the switch. Control current: 1-5MA control voltage is different, the current difference is mainly the loss in the LED. Charged current: 0-22A, if greater than 5A need to add heat sink. Board comes with LED indicator Controlled input and output with screw terminal block 2.54MM pin control terminal, is easy wiring. Control can be directly connected to the microcontroller IO. You can use the microcontroller ARDUINO PWM motor speed control, lamp brightness and so on. High current attention to add heat sink. Board size: 4 x 3 cm   Package includes:   5 x MOS Field Effect Transistor Module

Functional Description: MOS FET electronic switch module, you can use low-voltage and small current to control high-power equipment, motors, light bulbs, high-power LED. For example: you want a device output 5V signal, control a 12V motor switch. This module can be achieved. Feature: Input control voltage 3.3V-12V Output control voltage: 5-36V Board using optocoupler isolation, 2-terminal voltage completely separate. Input control using 2 pins to control, one connect ground one connect control to direct control the switch. Control current: 1-5MA control voltage is different, the current difference is mainly the loss in the LED. Charged current: 0-22A, if greater than 5A need to add heat sink. Board comes with LED indicator Controlled input and output with screw terminal block 2.54MM pin control terminal, is easy wiring. Control can be directly connected to the microcontroller IO. You can use the microcontroller ARDUINO PWM motor speed control, lamp brightness and so on. High current attention to add heat sink. Board size: 4 x 3 cm Package includes: 10 x MOS Field Effect Transistor Module

Buy 100pcs Micro USB Microphone Female Socket 5P Gold Plated 1.27mm Sink Board 5 Pin 4 Feet Patch For Sa for R271.00

MightyBoard Motherboard A4988 Dashboard 3D Printer Module Board Kit Introduce: MightyBoard is a DIY Open Source 3D Printer Control Board designed by MakerBot company, it is mainly used in desktop 3D printer DIY creation. It adapts ATMEGA’s Atmega1280 as the master control chip. MightyBoard provides stable and excellent performance while reducing the difficulty of development; it is very suitable for those who enjoy DIY. What’s more, MightyBoard supports dual extruders, with the control software of MakerBot, it can realize double color printing to make printed items more attractive. Features: 1.Supports dual extruders. 2.Adopts professional thermocouple temperature measurement chip, to ensure accurate temperature measurement. 3.The heating module has protection function to make sure the safety of using. 4.Unique RGBLED display. 5.Compatible with the Arduino development environment, easy to develop further functions. 6.Use active cooling in the printing process to make sure the printed items can form better. Package included: 1 x MightyBoard Motherboard 1 x MightyBoard control LCD with cable 5 x A4988 stepper with heat sink 2 x Temperature thermal resistance 2 x Heat sink sticker

Buy DC-DC 7-15V to 5V Power Supply Module 9V to 5V 12V to 5V with Heat Sink Switch Board... for R149.00

DC 12V-24V 100W BTL Out TPA3116 Mono Channel Digital Power Audio Amplifier Board Description: Small size design, BTL output, the maximum output power 100w, can drive 2 ohm speakers, be balanced (differential) input, external heat sink chip work more stable. The latest revision: optimization of circuit traces, increasing the mute control terminals. Mute Control: M mute control end, high muted (voltage 3.3v-12v), low-level work (and GND connection is working state), there is a short circuit cap distribution, the default state is working shipped when needed mute control, the shorting cap removed, external control on the line. Two Signal input mode can be selected according to the following needs: Balanced input signal (differential): Signal + Signal -, GND (ground). Unbalanced inputs (single-ended): - end and GND (ground) short circuit, the signal input from the + terminal. Specifications: Board size: 75mm * 50mm Operating voltage: DC 12V-24V Maximum output power: 100w (2 ohm speakers connected) Board overall height: 25mm Package included: 1 x TPA3116 Mono 100W Digital Audio Power Amplifier Board

Parameter:   Nature: polymer lithium battery protection board Overcharge detection voltage: 4.25±0.025V Overcharge release voltage: 4.15±0.05V Over-discharge detection voltage: 2.50±0.08V Over discharge termination voltage: 3±0.1V Overcurrent: 10-15A Operating current: 15A (free cooling: 10A, plus heatsink: 15A, maximum instantaneous current: 15A) Termination condition: release of protection condition, and then automatic recovery without activation (optional charger activation) Operating temperature: -40℃ to 85℃ (high temperature environment, please strengthen radiation) Connection: welding output Size: 50*22*4mm(length*width*height)   Feature:   Overcharge protection, over-discharge protection, short-circuit protection, over-current protection   Application:   The protection board can be used as a four-series polymer lithium battery pack with a nominal voltage of 14.4V, 14.8V, and 16.8V; there is no high-current-activated current in power applications, and false trigger protection is avoided in inverter applications. Therefore, it is more convenient to use.   Note:   There is no part design on the back and it can be connected to the heat sink to ensure long-term high-current operation.   Package included:   1 X Battery charger protection board module

Feature: When you use Arduino Due as the controller of your 3D Printer, you may find the RAMPS1.4 is not compatible with DUE. As you know the Arduino Due is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3, the importance is the Atmel SAM3X8E chip used on the Due operates at 3.3V, worse applying 5V to the Due's inputs will likely damage the chip. So we create a new RAMPS variant which is compatible with the Due to replace Ramps1.4. Why should I use Ramps-FD instead of Ramps1.4? Campare Ramps-FD with Ramps1.4, the improvements of Ramps-FD are below: * The RAMPS-FD has other hardware protection, through the jumper cap control motor drive IC * The RAMPS-FD Much more than Ramps1.4 2-way PWM * The RAMPS-FD has Larger driving power than Ramps1.4 * The RAMPS-FD power has two choices: 12V and 24V Why should I select Arduino DUE instead of Arduino Mega? * CPU operates at 3.3V * High-current IO pins are capable of 15 mA source, 9 mA sink * Low-current IO pins capable of 3 mA source, 6 mA sink * CPU package has an absolute max of 130mA * The Due has 1 dedicated SPI port, and 4 multipurpose USART/SPI ports. The SPI port is only routed to the 6 pin header used for ICSP on Mega, but this is not used for ICSP on Due * The Due does not have any EEPROM * Due has lower power, computing faster and flash, sram bigger than mega2560. You will need to buy a LCD adapter for RAMPS-FD. Package includes: 1 x RAMPS-FD Shield for Arduino DUE

Description:   1. The main control chip using Le Xin ESP32, Tensilica LX6 dual core processor, clocked at 240MHz, computing capacity of up to 600DMIPS, 520 SRAM, 802.11 KB chip b/g/n HT40 WiFi transceiver,  baseband, and LWIP protocol stack, Bluetooth (Bluetooth dual-mode integrated traditional and BLE low-power Bluetooth). 2. onboard 16 Mt bytes (128 Mt bit), Flash, and Wi-Fi antennas. 3. 0.96 inch White OLED display. 4. lithium battery charging circuit and interface. 5. CP2102 USB to serial chip, perfect support for Arduino development environment ESP32 QFN package is a highly integrated chip, because of high frequency, small volume and not easy to heat dissipation, so Appeared when use high fever is normal, we complete the circuit had done to the stability of the evaluation, please rest assured use; If you have any worry, can increase the heat sink. This product has built-in batteries. Package included: 1 x ESP32 OLED V2.0 Kit( ESP32 OLED V2.0*1, Board*1, DTH12*1, 3D print Shell*1,Cable*1, Line *1, Small heat sink *1, pin*2) 1 x USB Cable

Features: The use of specially designed PCB circuit board. Electrical characteristics are very good, strong performance With better cooling effect of thermal grease. Use high power transistor, product safety and reliability without electric shock hazard PCB size: 85 x 54mm Installation of video connection, the actual installation of only 3~5 minutes: (http://v.youku.com/v_show/id_XMTYzMTcwMjc0NA==.html?from=s7.8-1.2& x) Note: Pay attention to protect the secondary coil during installation, the secondary coil for enameled wire is very fine, so don't hurt or broken wire General secondary coil is the final installation of the power detection after the successful use of glue to fix it on the PCB board. Primary coil to one end of the soldering on the right side of the circuit board "L1" soldering plate and counter clockwise to the other end of the two lap welded to the left "L1" pads, attention is counter clockwise rather than clockwise, if the direction is  reverse, the machine will not work. Unauthorized modification of power interface, if the polarity reversed, it will burn out the triode, remember. Package includes: 1 x PCB 1 x Switch 4 x Screws 1 x Heat sink 1 x Triode 1 x Screw to fi x triode 1 x Resistance 1 x Capacity 1 x Diode 1 x Primary coil 1 x Secondary coil Test pictures, for reference only!  

Description: 1. The use of synchronous rectifier converter design, high efficiency, high current work doesn't require additional heat sink, the output is smooth DC (no pulse), direct drive output design. 2. Can support all 12V 5A within the fan, including brush DC motors, pumps, light bulbs, etc. Can't exceed the maximum current conditions can work more than one fan in parallel, a soft-start power. 3. Can be adjusted by rotating the board any manual speed control resistor. 4. With four-zone automatic temperature control variable speed function, plug in the temperature control probe automatically after the entry into force, temperature control will manually adjust the speed to the lowest speed, the highest speed is 12V through. The linear speed of the middle speed change. 5. With the work monitoring function of a channel, can support a way with a speed wire (such as three-wire fan) stop monitoring alarm, when the speed is less than 450 rpm sound and light alarm (need to be equipped with buzzer). Specifications: Working voltage: DC 12V Circuit load capacity: maximum current per output 5A, the bus current up 9A Output range: the first channel: 20%-100% or 40%-100% (TFL = ON); the second channel and the third channel: 10%-100%; (Note: above range only for PWM range, the actual control effect will vary depending on the fan) Temperature probe parameters: 50K B=3950 Thermostat temperature zone error: error depending on the temperature probe, generally 3%-5% Stall alarm minimum speed: 700-800 rpm Circuit board size: 50 x 49 x 15mm Center distance of locating hole: 44 x 43mm, diameter: 3.2mm Setting switch description: TFL(No.1): the lowest temperature channel PWM setting, when ON state FAN1 PWM minimum is 40%, when OFF the minimum PWM of FAN1 is 20%,. TP1 TP2(No. 2, 3): temperature channel control temperature zones are interpreted as follows(need to use with the temperature probe) TP1 TP2 Accelerating temperature Full speed temperature OFF OFF 35￢ﾄﾃ 45￢ﾄﾃ ON OFF 40￢ﾄﾃ 55￢ﾄﾃ OFF ON 50￢ﾄﾃ 70￢ﾄﾃ ON ON 60￢ﾄﾃ 90￢ﾄﾃ Package included: 5 x DC 12V 5A PWM fan speed controller 5 x Temperature probe 5 x Buzzer

Description: Audio mode: 1. U disk TF card decoding playback (support FLAC, WAV, MP3, WMA format decode) 2. Bluetooth receiving playback Supply voltage: DC 8 - 26V (DC power supply) Current: 5A Amplifier chip: digital amplifier chip TPA3116 with heat sink, stereo, power 2X50W.(More than 24V 3A switching power supply is recommended, it can’t use the transformer to power supply) Additional features: FM radio function, it can use remote control to receive control (infrared) FM: needs to use the FM FM radio function. Please first weld a long conductor on the FM antenna pad. When the antenna is not good, the radio is not good enough to receive the radio, that is, the antenna is long and depends on the window point. FM use: first switch to the FM mode, and then press the PLAY key, as long as you automatically search the radio you will loose hands. After the search is finished automatically, the radio is switched on the next tune. Package included: 1 x HF183 Digital Bluetooth Amplifier Board 1 x Remote Control

KAC-M - Kenwood 4-Channel 400W Class D Compact Digital Car Amplifier RMS Power Rating: 4 ohms: 45 watts x 4 chan. Max power output: 400 watts Conformal coated circuit board suitable for marine applications Extruded aluminum heat sink design Dimensions: 5-1/2"W x "D x "H Important - Please read before placing an order! All 'Import It All' products are order on request items, and as such will take roughly working days once payment has been recieved to be delivered. All stock is sourced from the USA, and is designed for use in the USA. If the item is powered, a transformer will be needed if the item lists as 110V only. If the item lists as V - only a simple adapter is needed. If you are unsure please check with us/the manufacturer before placing your order. Once your order has been processed, we will confirm the order and send you our banking details. Once paymant has been received, we will process your order accordingly. We will keep you updated during the process, and advise you each step of the way (Once the order has been confirmed, arrived at USA office, arrived at SA Customs, arrived at SA offices and despatched to customer with tracking details). Please note you will receive automatic feedback requests from BoB before the order is delivered, please wait for the order to be delivered before rating us. Pricing displayed includes all customs charges (VAT/DUTIES/PORT HEALTH etc), insurance and international shipping - there are no surprises or any extra costs when the item arrives in the country. We use a door to door courier for all our deliveries and do not use the Post Office. As all orders are placed as a special request, orders cannot be cancelled/returned once the order has been placed and confirmed. All items come with the standard warranty issued by the manufacturer in the USA. If a warranty claim needs to be submitted, the item would need to be returned to the USA. The authorized SA distributor of our products are under no obligation to honour the manufacturer's warranties or to provide after sales service. If you have any queries, or need more information about any of our products, please use the 'Ask the Seller a Question' facility and we will get back to you straight away!

Feature of aluminum case: 1. Support camera module(official original camera), with a camera acrylic box. 2. Reserve interface of battery compartment(soon coming). 3. Excellent heat sink to ensure heat dissipation. Aluminum case assemble guide: http://www.raspberrypiwiki.com/index.php/Rpi_HD_3.5_inch_TFT#Matching_CNC_Case 3.5 inch screen user guide: http://www.raspberrypiwiki.com/index.php/Rpi_HD_3.5_inch_TFT Note: The RPi main board is not included. Package included: 1 x Aluminum Case 1 x 3.5 Inch Screen

Specification: Material: Metal Size: As shown Color: As shown Feature: 12V input voltage to generate an arc about 2mm. A few simple discrete components condemnation weld can work. Tesla coil mini small package, making simple, hands-on interest in the production of a cultured brain. This coil will wirelessly light up flash frequency tube, neon, LED and also serves as a learning experience about circuits, electricity, and science itself. Makes it easy for science projects and a fun hobby. Notice: 1.Please allow 1-3cm error due to manual measurement.Pls make sure you do not mind before you bid. 2.The color may have different as the difference display, pls understand. Package Included: 1 x PVC Board 1 x Monolithic capacitor 1 x 10K resistor 1 x 1K resistor 1 x 12V Power Socket 1 x Heat sink 1 x Transistor 1 x Secondary coil 1 x Fixing screw 2 x Led Note: Not including the sphere