I see a lot of love for AA and AAA powered lights on here and I honestly don’t get it. The lithium lights are way brighter and last longer in the same size or smaller package. Also rechargeable, don’t get dim as the battery dies, and more waterproof. Really I have no idea why anyone would buy a light that runs off AA or AAA batteries.
What headlamp do you run with rechargeable Lithium? I’m not married to AA or AAA headlamps, I just keep an extra pack of batteries in the truck and replace as needed. Most end up corroding after a few years which is maybe a battery change or two.