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July 30, 2020
Electric iron
Hand grinding
Utility knife
350 ohm resistor 1
1 IN4007 LED
Silicone rubber and thermal curing adhesive
AB glue
1WLED1
15 degree condenser lens 1
18650 lithium battery (to be charged with protection board) 1
AMC7135 steady current chip 1
a stainless steel tube with an inner diameter of 21mm
1 switch
Heat shrinkable tube
wire
Method / Step:1. Working principle
2. Welding steady current chip and LED
Place the 7135IC on the PCB surface of the LED, clip it with the book clip and solder it.
3. Wiring
According to the description of the circuit diagram, the red line is connected to the LED positive pole, and the black line is connected to the GND pin of the 7135IC.
4. Processing condenser lens
Installed LED coated with silicone rubber to improve waterproof and dustproof performance, installed lens lighting test, good, bright
Insert the lens into the stainless steel tube, pull the wire from the tail, and pour the heat-curing silicone to transfer the heat of the LED to the stainless steel tube.
The above is the Homemade led flashlight step tool / raw materials we have listed for you. You can submit the following form to obtain more industry information we provide for you.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.