Product Size: 18*8.5*1.8cm Specification: Material: Metal + ABS LED Quantity: 2pcs Warm + 3pcs Cool White LED />Power: 1W Battery capacity: 1000mAh Input voltage: DC 5V Charging time: 2 hours Package content: 1x LED book reading lamp 1x Micro USB charging cable (39 inch long) 1x user manual 1x carrying case 1. 3 Colors 3 Brightness & Flat SwitchDesigned with 5 LED bulbs and 9 total brightness modes to meet different lighting needs in daily life. Press and hold the switch for 3 seconds to change the light color (3000K Warm White, 4500K Natural White, 6500K Cool White). Quick click to select brightness (Low, Medium, High). 2. Stop Wasting Money on BatteriesBuilt-in 1000mAh Li-ion rechargeable battery and Micro USB port. Enjoy your 60 hours wireless reading without charging at brightness setting (Warm, Low). 3. No Flickering & Eye ProtectionNo flickering, no shadow, no dizzying light. There are 3 colors and 3 levels of brightness, so you are free to choose the perfect color and brightness that keeps your eyes comfortable. EYE-CARE SOFT DIFFUSED LIGHT creates a private reading space where you can enjoy your reading time without disturbing your partner or roommate. 4. Portable and ReusableSmall but feature-rich. The flexible gooseneck is 360 bendable and can be adjusted to the desired location. Perfect as book lights, bedside lamps, music stand lights, computer lights, desk lights or for reading headboards, camping, reading with children, learning, keyboards, painting, tailoring, DIY and hobbies. 5. Lightweight and Portable Multifunction Clamp The clamp is adjustable up to 4cm. It is ideal for books, computers, beds, desks, etc. The reading lamp is therefore also suitable for camping or traveling.