Although some of the initial comments are a bit dated in this thread, it's worth a read. Part of what I seem to be seeing (not just in the thread linked below) hints at some inconsistencies in what people are getting when they buy the Ultrafire lights. A couple of the issues that have been addressed on the CandlePower Forums bug me a bit. There seems to be quite a bit of give and take with these lights...and some hit or miss with purchasing. Perhaps some re-branding or multiple entities producing the same light and branding them under the same name (on occasion or occasionally in the recent past). I'm not meaning this to dissuade anyone from buying...just pointing out some previous reviews and opinions. And I do think I'm going to order one of these just to have it...maybe I'll keep it, maybe give it away...but I think I'll order one so I can evaluate for myself.

Ultrafire C3 Multi-stage vs Single-stage (14500/3AA ADDED): RUNTIMES, pics!

Another thread of interest from the CandlePower Forums:

Ultrafire C3 Cree Q5 LED Flashlight (DX sku.10727)