I have been trying to find a way to light my work bench for a few minutes, when I have service calls and need light. A dome light from a camper works fine, but draws a lot of 12 volt. Too much to run on two carbon zinc lantern batteries. Runs for a while on alkaline lantern batteries, but expensive. Used to run it off a battery booster pack, but the internal cell went dead.
Fluorescent lights don't work when it's cold.
Either I need more amps, or a LED set up of some kind. I havn't found the right answer, yet.
Might have to rig it into the starting battery, in the front of the van.
Something will come to mind, I'm sure.