LIGHT SOURCE: CREE XPL 10W LED * 1; POWER SOURCE: C TAPE BATTERY * 4; MAXIMUM SIZE: DIAM.46MM * 254MM; WEIGHT: 275G(NET); MATERIAL: ALUMINIUM ALLOY 6063-T6; FINISH: ANODIZED; SWITCH: TAILCAP 100%-OFF-20%-OFF-SOS-OFF; LIGHT PRESS 100%-20%-SOS CYCLE; ROTATE HEAD TO FOCUS; IPX4; BRIGHTNESS: 1000LM; LIGHT RANGE UP TO 350M; WORKING TIME (CONSECUTIVE): 7 HOURS