Features 1、3 Color Temperature: Press the power switch to turn on the light. The default color for turning on the light is 4500K color temperature neutral natural light. Then quickly press the power switch to cycle through the light colors. 3000K warm light, 4500K neutral light, 5500K white light can be switched freely to meet different lighting needs. 2、Brightness Adjustment: When any light color is on, long press the power switch to adjust the brightness from the current brightness to 100 percent. Release the power switch and long press the power switch to adjust the brightness of the light from 100 percent to 8 percent. 3、Reading Light: The book light for reading in bed can illuminate your book in the dark, with soft light. The light angle is only in the written range, and does not affect the sleep of people around you. 4、Plastic and Rubber Material: The clip on book light for reading in bed is made of plastic and rubber, which is soft and deformable, and can withstand at least thousands of folds. 5、Usage Scenario: Mini book light is suitable for reading at night in the dormitory. When reading in the bedroom, it can be used without turning on the headlights. Specifications Item Type: Book Light Material: Plastic, Rubber Weight: Approx. 47g / 1.7oz Product Length: Approx. 18.5cm / 7.3in Charging Method: USB Direct Connection Built In Battery: Ternary Polymer Lithium Battery 250mAh (Included) Light Source: Neutral Light, Warm Light, White Light Working Time: 3-15h (Determined By Brightness) Charging Duration: About 40 Minutes Function: Stepless Dimming Package List 1 x Lamp 1 x Metal Clip 1 x Plastic Clip 1 x Pad 1 x Manual