Product description Material: ABS Battery capacity: 1000Mah Size: 30.6x8.2x4.2cm Number of LEDs: 5 Product power: 1W Package content: 1*LED reading clip light 1.5 LED Light Book light can block 99.95% blue light. Blocking helps melanopsin receptors in the retina signal to the brain that it is time to secrete melatonin in preparation for sleep. 5 LED lamps provide stable and comfortable light, protecting your eyes from shining hurt and radiation. Clip reading light led is very suitable for bed, nighttime, and reduces eye strain. 2.360 Soft Flexible Neck & Anti-Skid Clamp The neck that can be adjusted at any angle can position and focus the light on the place that needs to be. The goose neck is flexible enough to soft it to any angle you desire, providing you with 360omnidirectional lighting. Adjustable clamp with rubber pad protects pages from being damaged, offers secure and stable clamping and helps to get the optimal illumination range. 3.USB Rechargeable & Power Indicator Book reading light built in rechargeable lithium battery enable you to enjoy wireless reading time up to 60-hour (at low brightness setting). In addition, the special 5 LED indicator lights will always show you the remaining power of the book light, no more worry about when to charge it. The USB data cable is included in the package which can be used to charge the led reading light to a full charge in 1.5 hours. 4.Lightweight & Portable DesignOur clip reading light led reading light Can be carried in a cloth bag, Being able to fold, takes up very little space, just like a mouse, led reading light is great to carry around. Convenient for you and your kids reading, tasks, music stand, computer light, traveling, study and hobbies.