Diving flashlight LED type: SSC P7 LED Function: 4 work modes((Low 10% brightness -- middle 50% brightness -- high 100% brightness --Flash)) Material: Aluminum alloy Runtime: 0.5/1.5/2 Hours (high/low setting) Length: 152.4 mm (6 Inches) Switch: Rotary Magnetic Switch Battery; 1PC-18650 2400mAh Rechargeable Li-ion Rechargeable: Independent Charging Barrel Diving Depth: 100M, anti-shock, 2-3 o' ring