battery-powered reading lamp, clip-on bedside lamp with 3 brightness levels Comfortable and adjustable brightness: Designed with 18 LED lights (18 lumens), which provides a natural, non-flickering light that does not hurt or strain your eyes. And there are 3 light modes, you can adjust the brightness just by pressing the power switch. USB Rechargeable Battery: Built-in 1200mAh rechargeable battery and USB charging cable, you can use the light high for up to 3 hours after full charge, and the indicator light changes from red to green when it is fully charged. Portable and flexible: The reading light has a mini size and a compact design that makes it very easy to carry. Stable and flexible gooseneck (360 degrees) allows you to place your lamp where you want it. Usage: Perfect for reading, work, study, emergency use, suitable for study, office, bedroom, living room , bedroom, also perfect as a night light for baby's room