Features Optimal Brightness and Coverage: Our book light has nine premium LED beads, providing a bright yet soothing glow to protect your eyes. The 90-degree adjustable head and 180-degree rotating body allow you to achieve the perfect light coverage from any angle, enhancing your nighttime reading experience. Dual LED Light Source & 5 Brightness Levels: Choose from 3 color temperature modes: warm (3000K), mixed (4500K), and pure white (6500K). Each mode has 5 brightness levels, so you can customize the perfect ambiance for your reading sessions. Eye-Safe Reading Light: This flicker-free, shadowless, and non-glaring light offers a gentle, natural ambiance that remains easy on your eyes, even after extended use. Thoughtful Timing Modes: With a long press of the power button, you can activate the 30-minute (green light) or 60-minute (blue light) timer modes. This energy-saving feature promotes peaceful sleep and extends battery life. USB Rechargeable & Convenient: Equipped with a built-in 500mAh rechargeable battery, this lamp offers 10-100 hours of continuous illumination and is easy to charge. Compact Design & Versatile Usage: Weighing just 1.8oz, this robust yet lightweight lamp is ideal for hands-free reading, traveling, camping, and more. Its portable size, power indicator, and long-lasting battery make it the perfect reading companion. Specification Model: CS-X20 Color Options: White, Black, Blue Material: ABS, PC, Metal Plate Dimensions: 120mm x 35.5mm x 17.5mm Weight: 47g / 1.6oz Light Source: Dual Color LED Power: 1W Charging Parameters: 5V/1A Max Color Temperature: 3000K - 6500K Brightness Levels: 5 settings Battery Capacity: 500mAh, 5V Working Time: 10-100 hours Charging Time: 2.5-3.5 hours Package Dimensions: 73g / 2.5oz Package Size: 12.5cm x 7cm x 2cm / 4.9in x 2.7in x 0.7in Packing List 1 x Book Light Clamp 1 x Charging Cable 1 x User Manual