I have a PR-T with a T binned L-III and a MadMax Lite build by Don. I love it! A great walking light and house light, brighter than a TL-2 Led or Pelican M6 Led. I get more than 2.5 hours of good light from one 123 cell, waiting on a UBH to try it on a pair of AAs. The MM will absolutely suck the life out of a set of batteries too.