How To Make Traffic Light from Cardboard .



How To Make Traffic Light from Cardboard .
Making traffic light from cardboard,some leds,wires,paper clips,
tools,hot glue gun,sharp knife,for powering I am using 9v battery
and for lights 3 or 4 leds in serial connected bcz 3 leds are making
9v together.

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Post time: 05-17-2017