Flexible reading light with rubber coating Suitable for reading at night, ideal for use in planes, trains and cars, as well as in the home or office. other cases where good readability is required. Built-in 250 mA Li-Po battery, no additional cables required. Simply plug it into the power bank, smartphone charger or computer to charge the device. Whether as a bedside lamp, on the desk in the office, as a table lamp on the table, in the car, in the wardrobe, on the shelf or on the desk with the portable mini clip lamp you have the choice. Product specifications: The light can be switched to three color temperatures, and the brightness can be adjusted steplessly. Book lamp size 20.5 * 4 * 0.9 cm Maximum brightness: 50 lumens; Weight: 45g Color temperature adjustable in three stages: 3000K - 5500K - 4500K; Power supply: new 250MAH ternary polymer lithium battery; Duration: about 4 hours, charging time: about 40 minutes; The red LED indicator lights up #39;turns on when charging and turns off automatically when fully charged. How to use: With memory function brightness setting of turning on the light, the default is the last used brightness; Press the power switch to turn on the light, the default color is warm yellow 3000K , then quickly press the power switch to cycle the light color: white light 5500K -- warm white 4500K -- turn off the light; When light is on, long press the power switch to adjust the brightness from the current brightness to 100%, release the power switch, then long press the switch power supply, the brightness of the light will be adjusted from 100% to 15%; Users can adjust the brightness according to their needs. Delivered quantity: 1 room