Arc LS is great, but it's probably obsolete in terms of other current lights that are as bright if not brighter. I got a few LS's for a song and a dance (DaveH is thinking of the Arc4 with the programmable one), and I love them. I have clickies, twisties and 2AA packs for them. For something that is like 2" long it puts out a lot of light, in my opinion. But, they are probably priced as collector's items these days, so you could get a brighter light for less money. Heck, even the new AAA is supposed to be twice as bright as the old one! I love my LS's, but the only reason to get one, honestly, would be to have an LS, if that makes sense.