Specifications: You can adjust the brightness and color temperature. Just clip the product on top of the computer screen and do not need screws or tape. This product adopts asymmetric light path design, which only illuminates the desktop space, reduces screen reflection and effectively protects the eyes. Most USB socket can power the LED task lamp, whether its a computer, a mobile phone charger or a mobile power source. Item Name: Light Bar Material: Aluminium, ABS Input Voltage: DC 5V (USB Interface) Power: 8W Color Temperature: 3000K-6500K Color Rendering Index: 80 LED Type: SMD 3014 Number of LED: 84 Waterproof Level: IP42 LED Working Temperature: -25 Celsius Degree - 40 Celsius Degree Feature: Durable, High Brightness, Eye Protection, Home Lighting Size: 53.5cm x 10.5cm x 4.5cm(Approx.) Notes: You will find more amazing products if you visit our store. Due to the light and screen setting difference, the items color may be slightly different from the pictures. Due to different manual measurements,allow for slight size differences. Package Includes: 1 x Light Bar 1 x Hanging Accessory 1 x USB Cable 1 x User Manual