A headlamp has been mentioned a few times. There’s a group buy going on right now for some of the Skilhunt headlamps, Group Buy Active >> Skilhunt H15 and more >> Review Inside and you can request a coupon code sent via a PM. I got an H15 model that I liked enough to order more. Seems to be a quality unit and it works with a AA Primary Lithium Battery such as the Energizer Ultimate or the 14500 AA sized Lithium Ion.