I have one, but it stopped working. I have to send it back to Dorcy. Decent build quality and cool design in my opinion. It is direct drive and an has a Luxeon I star in it. The reflector isn't very deep, so it wouldn't make a good candidate for a CreeXRE emitter. An SSCP4 emitter/star would work well but would probably need some minor height adjustment. An Edison Opto Edixeon KLC8 star would probably work really well as they're supposedly the same height as Luxeons. Although 3AAA configurations aren't a favorite around here, this is quite a decent flashlight and works well with NiMH batteries.