Rated Capacity : More than 1600mAh. Long life battery could cycling used more than 500 times. Use LED bulbs of energy saving ,high efficiency and long life. With High-Low controlling option. Charging On/Off Tuner Switch. Light up the desk with this unique light. Multi usage Store energy and lighting. Charging Time: 5Hours On High Lasts up to : 3 Hours On Low Lasts up to : 6 Hours : Both high light and dim light for choices .Order today and Jamboshop will deliver for you.