Bi-color 5mm Led Ring (DIY)
here are the instructions to make a bi-color led ring ! Materials For this project you will need:-transparent tubing (inside diameter:3.5mm and outside diameter:5mm)-3mm led (here red)-5mm led (here blue) -4mm black heat shrinking tube-8mm black heat shrinking tube-three wires (here black, blue a...By: SimonRob
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