Mine is no longer made. It was made by Watershot. Has a very small LiOn battery with huge power reserves that mounts on my waist strap and a cord to the light head which is tiny and on my hand with a soft neoprene mount. Way smaller than tech "can" lights and every bit as bright. 4 hours run time on high (2000 lumens). 6 years old and 200+ dives and never a problem of any kind. Same for my wife's light. Personally, I have amassed enough spare light heads and batteries to keep my watershot going for years longer. They were absolutely the best recreational lights ever made in my view.
Nowadays, you can get very nice Big Blue lights that are self-contained with no cord and mount on your hand. Quite a bit bigger on the hand, but no separate battery pack and cord. Definitely want 2000 lumen, and a beam with a 10-20 degree spot and a nice bright "spill" to light the surrounding areas. Do not want a tight 6 or 8 "tech" beam. That is for a different purpose (penetrating murky water, or signalling) whereas I want to light up a wider area to enjoy the colors. My watershot's beam is plenty tight and bright for signalling, however, if I need to (another handy reason to have a light).
I see you dive in Canada, so maybe your conditions call for something else in terms of lighting from my clear water tropical diving. For example, if your water is murky, you would want a tighter beam than what I use.
