... ) high temperature resistance 4) clear Glass lens for LED car lamp(GT-) 1)material: optical glass(borosilicate),K9,BK7,B270 2 ... 5) shape: aspheric 6) main featurea: clear and transparent, no mould markd,no inside bubble and dirts b: can match up ... : suitable for big angle spotlight ,cars light,outdoor illumination,stree lamp,flashlight/torch light,wall washer ligh,tunnel light, table light ...