OK, the Jetbeam is great. Comes in a sturdy plastic case with waterproof seal and has a nice nylon sheath, good quality cord, extra o-rings and button. The body is very sturdy and waterproof but only down to two meters. The o-rings are bright red so you can easily inspect for cracks. Multi-mode works great, 4 levels of brightness and a SOS and strobe mode. Switching between them is weird but I'll get used to it.
The lowest setting is brighter than my Photon lights and supposedly lasts 90 hours, which I doubt.