Rugged black aluminum body offers a stealthy tech look while providing lightweight long-term durability. Interchangeable light head is equipped with the newest CREE XPL LED. 720 lumens and 13.800lux@1m ranks among the best in its class. Double O-ring seals ensure watertight integrity. Diamond-shaped knurling (metal indentations) on both handle and light head guarantees a firm grip, with or without gloves. Easy twist on/twist off activation allows for trouble-free operation. Shock-proof rubber protection keeps the light head safe from damage. Over-pressure valve releases battery off-gassing A depth rating of 1000ft/300m Powered by a single 18650 Lithium-ion rechargeable battery that provides 2.5 hours of burn time. 720R WIDE has sigficantly wider beam - 80 Degrees