COMFORTABLE AND ADJUSTABLE BRIGHTNESS: Designed with 18 LED bulbs (18 lumens), it provides flicker-free natural light that won't hurt or strain your eyes. And there are 3 light modes, just dim. press the switch to adjust the brightness. USB rechargeable battery: Built-in 1200mAh rechargeable battery and USB charging cable, super long battery life, can use strong light for up to 3 hours after fully charged, the indicator light changes from red to green when he is fully charged. Portable and flexible: The reading lamp is small in size, compact in design and very convenient to carry. Sturdy and flexible gooseneck (360 degrees) lets you place the light where you want it. Application: ideal for reading, working, studying, emergency use, suitable for study, office, bedroom, living room, dormitory, also very suitable as a night light for the bedroom of baby. Features: The built-in rechargeable battery can be used for charging. Flicker-free, protect your eyesight. Touch switch, 3 brightness levels. This desk lamp is perfect for placing on your desk or bedside table. With clamp and column, it has 3 positions: upright, clamped, suspended.