This Is A Reading Rechargeable Lamp With high capacity maintenance-free rechargeable battery convenient for your school,office and camping reading. It is highly rated because LONTOR is regarded as masters of energy saving. 1. SPECIFICATION a. With high capacity (1600mAh) maintenance-free rechargeable lead-acid battery. b. Recharged cycle life over 350 times. c. With 30 super bright, long life & energy saving LED. 2. INSTRUCTION a. Put the plug directly into the socket (AC110~220V), the charging starts when the indicator light is on. The normal charging time is 12 hours. b. 2 steps switch: middle for 24 LED at week light degree, forward for 24 LED at strong light degree. c. Lighting time lasts for about 7 hours with dim light, and 3 hours with strong light after full charging. 3. CAUTIONS a. Before using the product for the first time please charge the battery fully. b. Please charge in time before the light becomes dark entirely. If not being used for a long time, it should be charged over 11 hours every 2 months in order to maintain the battery life. c. Do not touch the plug and do not turn on the reading lamp when being charged. d. Keep away from rain or wet conditions. Extremely low energy consumption Very little heat generation Extremely long life, >30,000 hour's lifespan. Extremely high brilliance Energy Saving and eco-friendly, eye protection, Convenient and Durable.