Before you can even think about lamp integrated batteries it is imparitive that the physical characteristics of the batteries are understood. Not only are the proper background, installation training, tools, protective eye and body gear and safe room required, but there are the requirements for environmental impact awareness, proper disposal techniques (and it is spelled correctly) and let's not forget the well read owners manual. I assume the need for redundancy goes without saying along with proper use (not shining in anyones eyes). Using a new light without first satisfying yourself and everyone else that all of these prerequisites have been satisified could have deadly consequence. So for all our sakes, if you are going to use them, Get It Right, and Do It Right, the Frst Time and Every Time. Remember BULB (Bad Understanding Leaves Bodies)
:doctor:
Dive Safe and Often