ScreenBar Lite is a portable lamp that could attach to the laptop PC to light up the working area. An exclusive APP can work together with the built-in light sensor to dim the light automatically. Thanks to the asymmetric optical design, ScreenBar Lite casts the light only on the document, and no light shines on the screen or keyboard. With the special clamp design, you can attach the ScreenBar Lite to the laptop in just one move. It is USB powered and consumes just 5W.