3 color modes and 10 brightness levels with 48 high quality LED. This eye protection desk light provides warm, natural, or white light, each with 10 brightness steps. The soft, non flicker light helps reduce eye strain during long study or work sessions. Suitable for video calls, home office, kids studying, crafts, computer work, sewing, and more. Flexible arm and firm clip. A 38 cm gooseneck can be bent 360 degrees to place the light exactly where you need it. The metal neck stays in position, and the clip opens up to 5 cm to attach securely to a bedside table, computer desk, headboard, or similar surface. USB plug-in powered clip-on light. Easily connect to a laptop, PC, power bank, or adapter (not included) via a USB port. DC 5V with a 1.5 m cable. The lamp is flicker free and glare free to help prevent eye strain. Note: this USB desk lamp is not rechargeable. Memory and auto turn-off function. A small blue indicator on the switch helps you find it in the dark. Press and hold the switch for 2 seconds to enable the auto-off after 1 minute. The lamp remembers the last brightness and mode used until power is cut.