Specifications Color: blue Size: 420 x 120mm Voltage: 36V Light color: white light Light source type: 16 LED lamp beads Control method: touch control Attachment method: clip Package includes 1 x reading lamp 1 x USB charging cable 3 BrightnessThe LED reading light has 3 brightness adjustments. Suitable for various scenarios and people who are sensitive to light Eye Protect FunctionThe round head LED book light simulates the natural light diffuse reflection, reduce multiple shadows, clear view, no flash, no glare. Unlike other book lamp that emitted from one point, will cause eye fatigue Sturdy Clip & Flexible NeckThe sturdy clip with padded clip on any furniture edge without scratching it. The flexible neck allows you to bends and twists to the exact position, clip light giving you plenty of light wherever you are High Capacity & RechargeableBuilt-in USB rechargeable lithium battery clip lamp, longer battery life, no delay in work and study. Rechargeable function allows you to read anywhere, save the trouble of connecting wires