Originally Posted by
Rhyen Skytracker
It depends on the power supply and LED that you use wheather you need a PNP transtor or not. If you use a 3.7V single Li-Ion with a green or blue LED you will need transistor. It depends if you are happy with the blade brightness or not. But if you do use a transistor, be sure to use the correct resistor too. It is hard to tell with out looking at the set up in person to tell what went wrong. Do you have any close up pictures of the wiring? Also, the wire grounding out on the LED star can cause major problems too.
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