COMFORTABLE & ADJUSTABLE BRIGHTNESS: Designed with 18 LED lights (18 lumens), it provides flicker-free natural light that won't harm or tire your eyes. And there are 3 lighting modes, just press the button to adjust the brightness. USB Rechargeable Battery: Built-in 1200mAh rechargeable battery and USB charging cable, super long battery life, can use bright light for up to 3 hours after full charge, the indicator light changes from red to green when fully charged. Portable & Flexible: The reading lamp is small in size, compact in design and very convenient to carry. The sturdy and flexible gooseneck (360 degrees) allows you to position the light wherever you want. Usage: Ideal for reading, working, studying, emergencies, suitable for study rooms, offices, bedrooms, living rooms, dormitories, also very suitable as a night light for children's rooms. Features: Built-in rechargeable battery can be used for charging. Flicker-free, protects your eyesight. Touch switch, 3 brightness levels. This desk lamp is perfect to place on the desk or bedside table. With clip and column, it has 3 positions: standing, clipped, hanging.