It can use any of the usual battery types (preferably a nimh type from AAs or AAAs), but needs a good clip because it needs to be small enough to clip on a front pocket and will be a hands-free light. It should have NO PWM on any level, but should most of all be floody. No hotspot in the beam and it would need to be a budget light.
I have seen a few of these, but never had experience with these and so would like some recommendations.
Actually, these aren’t too craptasic for the money. Even bettery if you can snag one on sale for 5 bucks or so. Mine is GITD green. Does have 400 Hz PWM on low.