headlight for MTB

[BrianG]

Get several of the 3W LEDs, wire up the appropriate current-limiting resistors (better yet, use transistors configured as a constant current source), and run it on your battery. The voltage/capacity of the battery needed will depend on if the LEDs are run in series or parallel.

Regular high brightness LEDs probably wouldn't be a good option because they aren't bright enough for decent distance and their light dispersion pattern is too narrow.

[_paralyzed_]

some of those add on bullet driving lights like you see at an auto parts store, a little homemade bracket, and a 4s lifepo would light up the country side.

I used to have a pair on my wheelchair and it was like car headlights. I think the lights were $20-30.

They're 12v lights, you wouldn't need any resistors/transistors/thermal couplers/flux capacitors or anything out of the ordinary.