I am in flight returning from an extensive scuba diving trip to Taveuni, Fiji and the Rainbow Reef. I used the Abyss "D" while hanging slightly above and behind a group of night divers and very evenly lit up the landscape below. The light was a resounding big hit. While getting out of the water the light was banged around quite a bit, no problem.
If you remember, this was also the light that spent a week several hundred feet deep at the 40 Fathom Grato in Ocala, FL.