Energy and environmental issues have led to increased energy efficiency and improved indoor lighting quality in building design. However, daylight is preferred by users because of its physiological and psychological effects. This created the need to redirect daylight deeper into the buildings. Light shelves have been discussed in many studies as suitable solutions for controlling daylight in laterally illuminated areas and have been shown to reduce the need for artificial lighting in buildings and are commonly used in office buildings. It is a system that can be easily modified, offering a variety of design solutions. They can be positioned outside or inside a vertical aperture above eye level and can be static or dynamic. They can be designed in various shapes, horizontal or curved. Lighting shelves are one of the most popular solutions to redirect incoming light flow deep into space, improving uniformity while at the same time providing shading. The exterior shelves are generally more efficient shading devices than the interior shelves. A combination of exterior and interior shelves will work best to provide a smooth lighting gradient. The purpose of this research is to review innovative daylight systems as well as the results of research into the use of an automated light shelf using a stepper motor with reflective material in artificial environment With artificial sun, with using model and photometer.