Plexiglass is a popular name. From this name, you may not know what kind of substance it is, and you don't know what element it is made of. The chemical name of this polymer transparent material is polymethyl methacrylate, which is abbreviated as PMMA, which is polymerized from methyl methacrylate. Street Light,Smart Street Light,Outdoor Street Light,Garden Street Light Guangdong Smart Street Lighting Co., Ltd , https://www.fldlight.com