Originally Posted by kill.cactus
I was thinking just running the positive terminal on the battery into a switch and then onto the light and the negative directly to the light, however some people were talking about how I'd need a fuse for my light so i don't catch the battery on fire.
Electrical shorts happen, but adding a fuse can be very easy. You can find an
in-line fuse holder that using automotive-style blade fuses (10 amp should do) for a couple of dollars at the auto parts store. Connect one wire from the fuse to the battery, then connect the other fuse wire to your headlight wiring. Your wiring and battery are now protected. Remember to carry a spare fuse (you could electrical tape one to the battery).
Question: without a switch, how were you going to turn your light off?