Underwater Kinetics (UKE)
It's a fantastic little flashlight. In fact, I used it last night as it's got a glowring attached to it so I found it in the dark.
I've not compared the durability of the UKE 2L and E2e-HA but I'm pretty sure that where the UKE 2L misses out on output, switching, EDC-ability and coolness, it will win on durability and waterproofness (It's intended as a backup, backup divelight I believe).
I am very happy with my UKE 2L.
Al