- Powered by 2 * 26650 batteries, Compatible with 3 * C batteries<br /> - 8° beam angle<br /> - Mechanical rotary head switch offers high-reliability underwater<br /> - Intelligent Over-Heat protection<br /> - Water pressure resistant construction, depth rated to 150 meters<br /> - Reverse polarity protection, to protect from improper battery installation<br /> - Over-discharge protection function<br /> - Aircraft-grade high strength aluminum material<br /> - The latest diamond grade hard-anodized seawater-corrosion-resistance finish<br /> - Two sides coated toughened glass with high water pressure resistance under deep water<br />">