1: Product characteristics: A: Inside there is high capacity rechargeable lead-acid battery (900mAH )free maintain B: Durable recharge period more than 200times C: Use 18 long life and high brightness LED lamp D: LED lamp is low power consumption and long light time. 2: Usage Instruction: A: Lighting time: 15hours continuously lighting for 6 lamps and 5hours for 18lamps C: Reading lamp can be adjusted according to angle required. 3: Notice: A: Please full charging it when use for the first time and must every store three months charge again B: Please charge it in time when the lighting ray is becoming weak, otherwise, it would affect the battery life C: Do not expose this product to rain or moisture D: Do not use it when charging