9 Modes of Brightness and Infinite Dimming: Our reading light has 9 modes that you can adjust 3 color temperatures and 3 brightness levels to suit your different reading environments; Besides, our reading lamp also has infinite dimming to meet all your needs. Eye Protection Memory Function: Designed with 9 LED bulbs, the light source is soft as it does not flicker, dizzy or radiate. Its memory function makes the brightness and color temperature the same for the next restart, and you don't have to adjust the right light again. 360 Flexible Neck and Mini Size: The upgraded 360 flexible lamp neck allows you to adjust your lamp to any angle you desire, providing you with 360 omnidirectional illumination. Its mini size and compact design also make it easy to carry. Long Working Time Power Indicator: Built-in rechargeable lithium battery, book light provides up to 25 hours of lighting time (at low brightness setting) with just 2 hours of full charge, allowing you to enjoy longer wireless reading time. With battery indicator, easy to know the remaining charge and charging status. Multiple Applications: Clamp can open 5-35mm, ideal for bedside, book, laptop, shelf etc. The inside of the clip has anti-slip mats to protect the book light and prevent it from sliding. Built-in battery: 600mAh polymer battery Product size; 73*32*21mm Lamp beads: 9 (4 yellow and 5 white) Power: 1.8W maximum Color temperature; 1600-6000K Input voltage; DC5V 1A Switch mode: three-speed button 1 press warm + white light, 2 press warm light, 3 press white light, long press for stepless dimming Color: blue white Quantity delivered: 1 piece