Features: ● The book lamp, have 3 different Level of brightness and Colors, which can satisfied your needs. ● Minimum brightness level as a night light can be used without disturbing your bed-mate. Middle and maximum brightness level is suitable for reading or studying ● Built In 3200mAh Rechargeable Battery with USB Interface Design (No charger)--- table lamp can be powered by USB charger, plug and play, notebook PC USB, Mobile phone adapter, Car usb and etc ●Easy To Use With Clip Base Or Stand--- The reading light comes with a clamp holder .The maximum wide for clip:60mm, and placed on your desk or fixed at the edge when you want to read. It saves you space, protects your eyes and makes you create the feeling of trendiness ● 360 Degrees Rotating Flexible Design With Adjustable Twisted Tube-- The angle and height of the lamp head can be adjusted according to your needs.The Super anti slip silicone pad coupled with its light body makes it sturdy when placed in a standing position ● With 18 LED Bulbs And 3200mAh Long Life Battery .The frosted lampshade design is unique. The Soft light is good and healthy for your eyes as it does not flicker or produce negative radiation Product parameters: Rated voltage:DC5V Battery capacity:3200mAh lithium battery Charge time:About 5H High brightness lighting time:About 3H Low brightness lighting time:About 24H Color temperature:3000-6000K Package included: 1*table lamp 1*USB rechargeable cable 1xEnglish manual 😊【Online Service】: 10:00-18:00 (Monday to Friday) We cannot respond in time on weekend and holiday and will reply once we see your message. Thanks for your understanding. 😊【After-sale Service】: For you benefit, please take video when you receive the item. If there is any problem of the product please contact us in time. ❌A negative review will not help to solve any problem, please contact us first. We provide the best service for you and we are so glad to help you to solve any problem. If satisfied with the item, you are invited to leave your 5-start review with picture or video.