1W LED CAN LIGHT 3-4HOURS;2LED CAN LAST 10-12HOURS.WATERPROOF LEVEL IS 8METRES 1W +2LED DIVING DYNAMO TORCHMATERIALS:ABSPRODUCT SIZE:174X70X51MMWEIGHT:311GBATTERY:NI-MH 3.6V 600MAH TECHINCAL DATA:HANDCRANK 1MIN,1W LED CAN LIGHT 5-8MINS;2LED CAN LAST 15-20MINS;HANDCRANK 1-2HOURS,1W LED CAN LIGHT 3-4HOURS;2LED CAN LAST 10-12HOURS.WATERPROOF LEVEL IS 8METRES 1WLED DIVING DYNAMO TORCH