1,Battery:rechargeable battery 2,Material:abs 3,Long life,super-brightness led bulbs 4,color: customize Usage Instruction: ... then push the plug out and connect with the power(AC110V/220V).The relevant indicator lighr turns on, ... would shorten the battery life. Safety:1. The power and socket must be safe and standerd.2. ... charging.(Suggestion:charging in daylight time) 4pcs LED rechargeable Flashlight