Item No.: V11 (w/o support) Model: Diving Video Light LED: CREE XML L2 U2 Lumens: 900 Lumens LED color temperature: 4500-5000k. Modes: High,Low,Strobe BurnTime: 1.2 hrs (high), 5.8 hrs (Low),5.8 hrs (Strobe) Color:Black/Blue Waterproof: 100 meters Material: Aeronautical aluminum Treatment: Hard-anodizing type III Lens: 4mm clear PC Beam Angle: 110 degrees Voltage: 2.8V to 4.5V Battery: 1x 18650 Li-ion battery or 2xCR123 Sizes: 124(L)x26(body dia.)x40(head dia.)mm Weight: 140 g (w/o battery) Switch: Tail switch Operation: Repeated to switch ON/OFF within one second to cycle through 3 modes.