LEPOWER Outdoor Flashlight/Built-in 2600mAh Lithium Battery/ 5 Brightness Adjustable Modes Flashlight Led/Perfect for Camping, Hiking (Silver, Octangle) Rechargeable. Built-in battery, portable and handhold flashlight rechargeable, a great piece for outdoor and home use. Unique Design: Practical design of magnet and octagonal cylinder make it durable, slip-proof and provide hand-free lighting. 5 Brightness Mode Adjustable. Four brightness mode adjusted from dim to high and strobe lighting. Ultra-long Lighting Time: Work as a brightness adjustable flashlight and emergency light, ultra long lighting time from 5 hours at high mode and 100 hours at dim mode. LEPOWER extends a Free one-year product limited warranty to our customers.