My girlfriend wants an AA-based light for her key ring… Unfortunately, most, if not all, AA-based lights are rather large and unsuited for a key ring, so I'm wondering what people recommend?
Those are, I don't doubt, good torches—but neither are AA-based. That said, I suppose I'm also interested to know what people think are good key ring sized torches even if they're not AA-based, I just probably can't use the suggestions as she's pretty adamant that she wants an AA-based one (even though it's to replace a Solitaire…but hey, ours not to wonder why).
Peak Pacific w/AA body. Pop a lithium in there and you get 12 hours of regulated output. For use intermittantly, it could literally last years on a single battery.