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Step 3Connect the LEDs
strip the wires of the phone charger. Usually you'll have a black and a red wire but sometimes you have more. You need to find which is ground and which is positive.
Separate all the wires and strip back a small part of their insulation.
Plug in the phone charger and then test the LEDs on the different wires until you get the LED lighting up.
Cut off the unused wires (if any).
Then use a chocblock to screw the mobile phone charger wires and the LED legs together. You can use a couple of LEDs in parallel (see the photo) to make different colours.
This part can be quite fiddly as you need to make sure that the LED's legs don't cross over (which will cause a short circuit), and that the LED's legs are securely held in the chocblock (otherwise one or both LEDs won't light).
Separate all the wires and strip back a small part of their insulation.
Plug in the phone charger and then test the LEDs on the different wires until you get the LED lighting up.
Cut off the unused wires (if any).
Then use a chocblock to screw the mobile phone charger wires and the LED legs together. You can use a couple of LEDs in parallel (see the photo) to make different colours.
This part can be quite fiddly as you need to make sure that the LED's legs don't cross over (which will cause a short circuit), and that the LED's legs are securely held in the chocblock (otherwise one or both LEDs won't light).
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