The BenQ Screenbar Halo's symmetrical design illuminates desks without causing screen reflection. The wireless controller allows you to adjust brightness and colour temperature over 100 stepless levels for work and leisure. The ScreenBar Halo also fits most curved monitors between 1000-1800R. Other highlights: - Three eye care setting modes: Immersive front light, back light design, and front and back light. - Built-in ambient light sensors allows for a the light intensity to be adjusted to the ambient conditions