4Sevens Preon Kit
But i like it a lot. For the same money I could get nearly 200 of the squeeze light Photon clones. There's a review of mine here.
In the single AA configuration on low it should do 24 hours. Fizz was seeking attention so I tried to get her to model with it in her mouth. Apparently Preon 2s don't pass the taste test for Giant Schnauzers. So we tried the collar clip test so she could see where she's been. The background was a real mess so I Photoshopped some more of the hall carpet over it. It really isn't that dirty but the background contained highly varied lighting and I'm not very good with Photoshop.
The light is on medium by the way.
The numbers from my light tests are always to be found here.