Product Size: 18 * 8.5 * 1.8 cm Specification: Material: Metal + ABS Number of LEDs: 2 Warm + 3 Cool White LEDs Power: 1W Battery Capacity: 1000mAh Input Voltage: DC 5V Charging Time: 2 hours Package Contents: 1x LED Book Reading Light 1x Micro USB Charging Cable (39 inches long) 1x User Manual 1x Carrying Case 1. 3 Color 3 Brightness & Flat Switch: Designed with 5 LED lights and a total of 9 brightness modes to satisfy various lighting needs in daily life. Press and hold the button 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. No More Wasting Money on Batteries: Features a built-in rechargeable 1000mAh Li-ion battery and micro-USB port. Enjoy up to 60 hours of wireless reading without charging at the lowest brightness setting (warm, low). 3. No Flicker & Eye Protection: No flicker, no shadow, no dizzying light. With 3 colors and 3 brightness levels, you can freely choose the perfect color and brightness to keep 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 & Multiple Uses: Small in size, but rich in function. The flexible gooseneck is 360° bendable to adjust to the perfect position. Ideal as a book light, bedside lamp, music stand light, computer light, desk lamp, or for reading in bed, camping, night reading for kids, studying, keyboard, painting, tailoring, DIY tasks, and hobbies. 5. Lightweight & Portable Multifunctional Clip: The clip is adjustable up to 4 cm. It is ideal for books, computers, beds, desks, etc. The reading light is also suitable for camping or travel.