This is the BigBlue 1800 Lumen Focusable Dive Light SCUBA Diving Features: 1800 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 26650 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 Specs: Package Weight 2 lbs Lumens 180Lm (Level I) 450Lm (Level II) 900Lm (Level III) 1800Lm (Level IV) Beam Angle Adjustable 7Adeg to 37Adeg Burn Time 1.5 hrs (Level IV), 3 hrs (Level III), 6 hrs (Level II), 15 hrs (Level I) Power Source Rechargeable Li-Ion 26650 Battery Color Black Maximum Depth 100 Meters Tested Color Temperature 6500K (Cool White) Light Source XML LED Buoyancy -146 g (including battery) Housing Material Anodized Aluminum Alloy Size Dia. 35.5 x L. 169.3mm Weight 301 g (including battery) The CF1800P 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. Now includes a USB charger that is capable of charging an 18650, 26650, and a 32650 battery. In The Box: Light Rechargeable Battery USB Charger Lanyard Two Spare O-rings Silicone Lube Dry Bag Owner&&';;s Manual Manufacturer&&';;s 1 Year Warranty Battery Model Charge Time BATCELL26650 5-6 hours