Short description: This book lamp is made of high-quality red walnut wood, which is safe and durable. You can rotate the book 360 degrees, and the N54 magnet allows for innovative lighting solutions if you’re feeling adventurous. Power Source: USB and rechargeable Light Color: Soft White (350 lumens) Charge Time: 5-6 hours Operating Time: 5-6 hours Product Dimensions: (L146 x W115 x H25 mm) Battery: 800mAh Light Source Type: LED Input Voltage: 5V Output Voltage: 3.7V Power: 2-4W