I installed 12v batterypowered LED lights on my Coleman CC100X mini bike so I can drive at night.

UPDATE: I put out a Part 2 where I improved the wiring and used a better handlebar switch:    • Adding lights to my Coleman CC100X mi...  

Parts list:
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Switch: https://www.amazon.com/gp/product/B01...
Wire: https://www.amazon.com/dp/B07D74RGVM?...
Taillight: https://www.amazon.com/gp/product/B01...
Headlight: https://www.amazon.com/gp/product/B01...
12V battery: https://www.amazon.com/gp/product/B00...