Dimmer Clip on Light: The Flexible clamp light has 3 colors mode & 10 levels light, Max 600 Metal Clamp on Light: Using high-quality aluminum material, nano anti-scratch coating Rotation Led Light: The gooseneck desk light can be rotation in all directions for use anywhere Eye Protection Clip on : Led clamp light flicker-free and non- light, Perfect for a long time of reading or writing, less fatigue of the eyes Smart Function Led Desk Light: The LED lamp will be automatically powered off 1 later after keeping pressing the power button more than 2 seconds The strong metal clamp can support up to 2 inch/5cm(max) thick desk.Space saving, suitable for reading,office,art workshop,architect,etc. The clip desk lamp's head is crafted with aluminum, preventing overheating for easier heat emission, extend the lifespan. 2M USB cable,Easy to control the 3 Modes & 10 Level Brightness with the dimmer to customize your lighting brightness as your favor. Colour: Black material: metal Size: 28*2*40cm Package Contents: 1pcs*USB clip light Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.