Abstract: The most commonly used lighting system includes fluorescent lamps, incandescent lamps, Compact Fluorescent Lamps (CFLs) and Light Emitting Diodes (LEDs). Lighting systems using has become popular because of their attractive properties like long lifetime, less power consumption, more brightness and so on making them good enough to replace the most commonly used lighting systems. Having a way to reduce the brightness with respect to the daylight illumination will help in reducing the power consumption furthermore.