Long-Lasting Battery, Lightweight:Providing up to 6 hours on maximum brightness and 100 hours on the lowest setting, the 3500mAh built-in battery provides plenty of hours of use. Its lightweight and can be transported anywhere.Eye-Caring Light, Dimmer Brightness:This modern stylish lighting fixture features 42 energy-efficient LED bulbs; Providing a choice of bright light for work or low diffused mood lighting for reading and relaxing ambiance.Auto-Off Timer, Touch Control:The desk lamp offers the convenience of a built-in 30-minute timer and simple brightness adjustment through the touch button. This table lamp is ideal for the home office, bedroom, living room, hobby room or workshop.360 Adjustable Neck, Memory Function:A unique feature of this desk lamp is theflexible gooseneckthat can be rotated in any direction you desire. It also features a memory function that remembers the last brightness setting you used.Super Energy Efficient:The 5w bulb is not only easy on the eyes, its also incredibly energy efficient. Using 10 times less energy than a standard incandescent light bulb, without producing any unwanted heat. Controlled bright light available whenever you need it.