Descriptions: 1. Book-style design, personalized appearance, bring a better experience. Outdoor lighting, lightweight and portable. Specifications: Rated voltage: 3.7V Rated power: 2W Working current: 500MA Battery capacity: 2000mhA Charging time: 3-4 hours Working time: 5-6 hours Brightness: 300LM Color temperature: 3000K 6500k Book material: imported white kraft paper Cover material: PU leather Color: red, black, white, blue, pink, brown Size: 21516025mm Package included: 1 x folding book light 1 x usb data line 1 x manual Notes: Please allow 0-2mm error due to manual measurement, thanks for understanding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you!