Product Description Light Source: 16 LED Lights Color Temperature: 5500K - 6000K Power Supply: 600mAh Rechargeable Battery Full Charge Time: About 4 Hours Working Time: 5 Hours (High), 9 Hours (Medium), 12 Hours (Low) Color: White Black Scope of supply: 1 x LED reading light 1 x USB charging cable to freely adjust the angle between the arm and the lamp holder, and put the clip on the lamp for the best viewing effect. 2. Reliable Lighting - The book light has 3 levels of light intensity, which can be adjusted by touch to suit your preference. Equipped with 16 high-quality LED bulbs to enhance visual clarity, reduce eye strain and increase productivity. Use low key mode to let the low key bed light read without disturbing your partner. 3. No more wasting money on batteries - Our reading light features a built-in 600mAh rechargeable battery, you can enjoy up to 24 hours of wireless reading. There are 3 power modes to choose from, including universal serial USB port, power bank and adapter (not included). 4. DESIGN AND WIDE CLIP TO OPEN - This headboard light is designed by our German designer, the sturdy clip can open 4.5cm. The noble white and flexible neck make the lamp look like a white swan. The non-slip rubber pad base is designed for elegant table lamp use. 5. MULTI-PURPOSE - Great for camping, kids reading, learning, music stand, car repair lights, computer lights, tasks, crafts and hobbies, travel and reading in bed without disturbing your partner.