2-speed dimming， full power， low light illumination can use 5 hours， bright lighting 3 hours

Features; Rated Capacity 1200mAH. Long battery life， up to 300 cycles using adjustable light intensity.

Instructions; charging the AC plug introduced directly into AC110V / 220V power outlet， the corresponding charge indicator light. It takes about 15 hours. Fully charged low light can be used continuously about 5 hours， light can be used continuously 3 hours