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At night time during power outage the the Photoluminescent Coating acts as a illuminating coating. The coating is ecofriendly, easy to prepare has multiple usage, reduces light pollution, has various benefits. This is a ecofriendly illuminating coating it absorbs sunlight during the daytime it illuminates at night time for 6 to 8 hours. (Refer Figure 2). Use of Strontium Aluminate for lighting can work to minimize electricity usage while minimizing excess light pollution. Minimizing light pollution has benefits for people and our environment and ecosystems. In the year 1993 Yasumitsu Aoki of (Nemoto Shokai Co Ltd) discovered the Strontium Aluminate material which is ten times more expensive than the Zinc Sulfide, with an about ten times the brightness and an about the ten times the phosphorescent lifetime. The Strontium Aluminate is the longest lasting and brightest phosphorescent material on the market available currently today.