When you choose the different LED Lights, you will find some LED Lights that mark the CRI value, 80Ra, 85Ra or 90Ra, so the question is, what is CRI?[……]
标签： LED LIGHT
Advantages OF LED Lights
well,like ledbe always say,the LED technology is one of the great inventions that can change human social.the most important factor is that is friendl[……]