Product description Light source: 16pcs LED lamps Color temperature: 5500K - 6000K Power supply: 600mAh rechargeable battery Full charging time: approx. 4 hours Working hours: 5h (high), 9h (medium), 12h (low) Color: white black Scope of delivery: 1 x LED reading lamp 1 x USB charging cable 1 x user manual 1.EYE-CARING CLIP ON LIGHT - Comes with a SECURE PADDED CLAMP and INFINITELY FLEXIBLE NECK, which can freely adjust the angle between the arm and lamp holder, and place your clip on lamp for best viewing. 2.RELIABLE ILLUMINATION WITH CARE - The book lamp has 3 levels of light intensity, which can be adjusted by touching to suit your preference. With 16 high quality LED bulbs that enhance visual clarity to reduce eye strain and increase productivity. Use low mode for a low-profile bed lamp to read without disturbing your partner. 3.NO MORE WASTING MONEY ON BATTERIES - Our reading light features built-in 600mAh rechargeable battery, you can enjoy your wireless reading for up to 24 hours. There are 3 power modes to choose from, including universal serial USB ports, power banks and adapter (excluding). 4. DESIGN & WIDE CLAMP OPENING - This headboard lamp was designed by our German designers, and the sturdy clip can be opened up to 4.5cm. Noble white and flexible neck make the lamp look like a white swan. The anti-slip rubber pad base is designed intimately for being used as an elegant desk lamp. 5.Multiple uses - Perfect for camping, children's reading, studying, on music stands, as a car repair lamp, computer lamp, for tasks, handicrafts and hobbies, traveling and reading in bed without disturbing your partner. Gives stable and evenly distributed light without Hot spot or flicker.