Based on LED light working principle and it is light spectrum, LED with disadvantages of serious glare, blue light damage, heart sensitive caused high failure rate, and high cost for maintainence. 

We hope the governments and other related organizations around the world can really pay attention to the public safety and environmental problems caused by improper lighting,we also hope more lighting users can see this article, lighting is not just about brighter or higher lumen/watt, the real purpose of lighting should be offering human being a safer and healthier living environment, at the same time minimize the impact on other species and the environment on earth. 

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