The product with strong illumination， special appearance， superior raw material is economic and nice-looking. Moreover， it's very easy to operate: when you open the book， the light will turn on， and when you close the book， the light will turn off automatically. So it is perfect for indoor use.Features:With a USB cable provided and a rechargeable battery， you can charge your book-shaped light extremely easily.Small in size and battery-operated， it's very easy to take with you and use it anywhere you want， very convenient.With strong illumination and special appearance design， the book light is both practical and beautiful.Made of Tyvek paper with high durability and strong water resistance， so the product is long-lasting.You can use the changeable and folding book light as a table light， floor lamp， ceiling lamp and bedside lamp.It's absolutely a perfect， special and amazing gift for your families， friends， lover etc.Specifications:Battery: 1 * 3.7V 2500mAh polymer battery (included)Power: 4.5WWorking voltage: DC5V / 300mACharging voltage: 5V / 500mACharging time: 5 hoursLighting time: 6 hoursLuminous flux: 500LMLight color: White(6500K) ， warm white(3000K)Paper: TyvekBook size: 21.5 * 17.0* 2.5cm / 8.5 * 6.7 * 1.0in(L * W * H)Package list:1 * LED Book Light1 * USB Cable