OrcaTorch D520 is a palm-sized diving light with a mechanically rotary switch. The rotary switch offers high reliability underwater. Using the USA CREE XM-L2(U4) neutral white LED, its max output can reach 1000 lumens, meanwhile the 5000K LED color temperature provides superb color rendition. Powered by one 18650 battery, its max runtime can reach 2 hours. Featuring * Cree XM-L2(U4) LED, max 1000 lumens output* Uses 1*18650/2*CR123A/2*16340 battery* Mechanically head rotary switch offers high reliability underwater* Water pressure resistant construction, depth rated to 150 meters* Reverse polarity protection, to protect from improper battery installation* Over-discharge protection function* Constructed from high-strength A6061-T6 aluminum * Mil-Spec Type III hard anodized finish for durability and corrosion resistance* Two sides coated toughened glass with high water pressure resistance under deep water