STUDY CLIP AND FLEXIBLE NECK - The gooseneck is flexible to adjust to the right position wherever you want. Perfect for bed head reading, table, camping, kids reading, study, desk light, computer light, chores and hobbies. The rubber buffer on the clip protects the pages from damage and provides secure and stable clamping. 3 COLORS*3 BRIGHTNESS - This book light has 3 light colors and each color has 3 levels of brightness. With touch control, the 9 settings are suitable for various scenarios and light-sensitive people. Equipped with 40 upgraded LEDs to provide more uniform luminance than others. Suitable for various scenarios and people sensitive to light. RECHARGEABLE BATTERY - Built-in 1200mAh rechargeable lithium battery, which keeps the book light working long enough after fully charged. Working time: 3-3.5h (100% brightness), 6-8h (50% brightness), 8-10h (20% brightness). Charging time 3-4 hours. Turn off the reading light with the main switch when not in use - Protect and extend battery life. EYE PROTECTION - Clip-on reading lamp with circular lamp head to simulate natural light, soft and not dazzling, the light is repeatedly refracted, entering the eye is more uniform, called diffuse reflection principle . Designed to help those who read and work hours a day reduce eye strain.