In reply to Taurig:
I've Bot 3 Vipers for friends all working great
No issues, great little lamp nice and bright can't complain at that money.
My mates use theirs as the main torch I just keep mine in the house as a spare had a few issues with the Alpkit Lanterns strangely Not liking certain batteries it would seem, and my old gamma still working perfectly that the kids still play with
I can't really fault their kit for the money
And they're customer service is excellent