13 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. 2Brightness 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. 3Reading 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. 4Plastic 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. 5Usage 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.1 x Lamp 1 x Metal Clip 1 x Plastic Clip 1 x Pad 1 x Manual