Just finished my front lights:
Each is powered by one of these:
In the beginning I had both hooked up to one, 1.6 A for both is well within the specs, but it got quite hot and, meh, I got 10 of those so…
I don’t know if I should be ashamed or proud of my mounting solution. Stupid simple but works like a charm. I had some large heat shrink laying around. I poked holes in it to put it over the truck mounting screws making a loop,
stuck the flashlight in,
I even kinda like the look of it.
These are on my helmet: