First dive testing my DIY 8000 lumen canister light. On the highest brightness setting (8000 lumens), it has 3 hours of burn time. On its lowest (900 lumens), it has 15 hours
sofirn 10000 Lumen Scuba Diving Flashlight SD01 Pro Super Bright Waterproof Dive Light with Magnetic Control Switch : Amazon.co.uk: DIY & Tools