HIGH COMPATIBILITY: ScreenBar Halo is designed with its unique weighted clip to fit most monitors. It supports monitors with >=0.25" (0.63cm) bezel width and thickness up to 2.36” (6cm) for flat monitors and up to 1.5” (3.8cm) for curved monitors over 1000R. Non-planar monitor back designs may cause mounting problems. SPACE SAVING: Unlike your normal desk lamp, ScreenBar Halo is powered via USB. The patented clip design mounts on top of almost any monitor, saving valuable space on your desk, no lamp base or extra wires to mess up your workspace. USB cable length is 5.9” (1.5m). SMART WIRELESS CONTROLLER: Customizable and stepless lighting allows you to switch modes and adjust brightness and color temperature levels. Over 100 stepless levels for work and leisure. Personalized adjustment: 3 modes (Front, Back, Front& Back Light). 3 EYE CARE SETTING MODES: Its dimmable Front and Back Light complement each other to reduce glare to a minimum and increase eye comfort as much as possible. The upgraded asymmetrical optical design ensures no reflected glare on your screen. INTEGRATED BACK LIGHT: Our newly integrated back light design enhances overall eye comfort, no matter in screen if you are working or relaxing entertaining. Adjust it to your preferred brightness or color temperature and then set it as “My Favorite” via the smart wireless controller according to your needs.