The Seac R40 is the most powerful of the Seac range of dive lights. With its 2300 lumens of brightness from a state-of-the-art CREE XM-L2 LED with a smooth aluminum reflector, it guarantees optimal visibility even under the most extreme conditions. Light has a color temperature of 5700K-7300K. The R40 Handheld Light has an adjustable beam angle from a narrow penetrating 12° to a wide 75°. Light has two brightness modes of 2300 lumens and 1100 lumens. Powered by rechargeable 26680 lithium-ion 5000 mAh battery with life expectancy of more than 500 recharges. Freshly charged battery will provide 2 hours of burn time in high mode and 4 hours at low lumen power. Light has three power modes of maximum 100%, reduced 50% and strobe. This durable light has a double O-ring seal system and electromagnetic switch system giving it a 330' (100 meter) depth rating. Light has an optical quality tempered glass lens, measures (Dia. X L) 2.17" x 7.3" (55 mm x 185 mm), and weighs 1.3 LBS. Light comes with a wrist lanyard, USB charge cable and owner's manual.