On a side note, I got my first ARC LS yesterday... and LS1. I put a fresh set of batteries in my
Ikelite Mini-C (4C cells driving a halogen bulb). The ikelite is about 13 years old. The LS1 was
differently colored but at LEAST as bright at the Ikelite. I was astonished! I am not sure which
Luxeon color would be the best for scuba, but I imagine that the scuba world would buy
waterproof luxeons enmasse as a backup dive light.
Advantages: very bright, very small and light weight, no worrying
about being caught completely without light due to dead batteries, and no worries about carrying
spare bulbs or handling halogens.
I dont do a lot of night diving, but I still carry a light on nearly every dive to improve colors underwater
and to look into nooks and crannies.