In such situations measures like exterior shading devices, interior shading devices, window glass, or a combination of these is effective. In non-domestic buildings, official recommended illumination levels are defined for the spaces they illuminate. photoresistor, photodiode or phototransistor. Following are the advantages of Light sensor: It is easy to integrate with lighting system such as automatic lighting system. Several studies in office buildings have recorded the energy savings for electric lighting from using daylight in the range of 20-60% (Galasiu, 2007), but it depends on the lighting control system used, how well the space is daylit during occupied hours and the intended functions of the space. Lower power consumption or better energy efficiency when compared against other display technologies such as LED and LCD is one of the advantages of AMOLED. At the same time they provide glare protec-tion from direct sunlight as usually experienced with insulated windows. For most buildings incorporating daylighting, the overall energy savings ranges from 15 to 40 percent. Ulrich, R. S., Simons, R. F., Losito, B. D., Fiorito, E., Miles, M. A., Zelson, M. (1991) Stress recovery during exposure to natural and urban environments. A., Hine, D. W., and Gifford, R. (1993) End-users' knowledge, beliefs, and preferences for lighting. Circadian House report (2013) Circadian House - Principles and Guidelines for Healthy Homes. Increased daylight doesn't just make driving easier and safer—it also makes people want to walk more, too. A., and Newsham, G. R. (2010) Windows, view and office characteristics predict physical and psychological discomfort. For almost 80 years, the VELUX Group has created better indoor environments by bringing daylight and fresh air into buildings all over the world. VELUX report http://thedaylightsite.com/library-3/research-publications/papers/ ((accessed: 2014-12-10). Daylight harvesting has many advantages when used properly. DST was initially introduced during World War I as an attempt to conserve energy. The actual growth will depend on demand for artificial light and the efficiency of lighting technologies, just two of the factors influencing increased consumption (IEA, 2006). Estimation of savings potential in domestic buildings requires a user profile, and models for switching on/off the lights. It is also important to protect the interior from too much natural light. A lack of daylight inside a building doesn’t necessarily spell doom for its occupants. A daylight lamp provides perfect natural lighting at any time of the day. It triggers our circadian rhythms, contributing to our health and well-being. (2002) Principles of Healthy Lighting : Highlights of CIE TC 6-11 ‘ s, National Research Council Canada. Daylight just happens to be one resource that can provide this exposure with the timing and duration that is most beneficial for humans. Studies suggest that daylighting has a direct impact on well-being, productivity and overall sense of satisfaction. Scientific research has proven that people subconsciously seek out sunlit places and enjoy spending time in natural light. This ability to irradiate the area and fill it with energy inspires the architect to include daylighting into a building wherever it is possible. Patio Enclosures sunrooms , screen rooms and solariums not only add additional living space to your home and increase its value, these products offer a place to relax in natural light, which can help to decrease stress levels. The benefits of introducing daylight into a space can be negated by improper handling of the daylight being introduced. Leukos, 5(1), 1-26). Journal of Exposure Science and Environmental Epidemiology, 17(2), 170-181. 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