STUDY CLIP AND FLEXIBLE NECK - The gooseneck is flexible to adjust to the right position wherever you want. Perfect for bedside reading, table, camping, kids reading, studying, desk lamp, computer lamp, chores and hobbies. The rubber pad on the clip protects the sides from damage and provides secure and stable clamping. 3 COLORS * 3 BRIGHTNESS - This book light has 3 light colors and each color has 3 brightness levels. With touch control, the 9 settings are suitable for different scenarios and light-sensitive people. Equipped with 40 upgraded LEDs to provide more uniform luminance than others. Suitable for different scenarios and light-sensitive people. RECHARGEABLE BATTERY - Built-in 1200mAh rechargeable lithium battery, which keeps the book light running long enough after full charge. 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 light with circular lamp head to simulate natural light, soft and not dazzling, the light is refracted repeatedly, entering the eye is more uniform, called diffuse reflection principle. Designed to help those who read and work hours a day reduce eye strain.