This is the BigBlue CF1300P 1300 Lumen Dive Light Adjustable Beam Features: 1300 Lumens at 6500K color temperature A variable 7-37Adeg beam angle which can be changed on the fly by twisting the bezel The rechargeable lithium-ion 18650 battery gives you two hours on the highest setting Four power settings to reduce the intensity and increase battery life Anodized aluminum housing means rugged dependability Color-coded battery indicator 100M depth rating Burn time: 2 hrs (level IV), 4 hrs (level III), 8 hrs (level II), 20 hrs (level I). Buoyancy: -117g (including battery) Battery model: BATCELL18650 The CF1300P is a versatile light for any diver. The variable 7-37Adeg beam is perfect for divers who may need a narrow beam one day but something softer and wider the next. From quarry to the Caribbean, this light will give you all the functionality you could need.