... for GB3836.1,2,3-2000 IEC60079 standard request. explosion-proof led lamp Application 1.Used in Zone 1 and Zone 2 ... atmosphere.2.With incandescent lamp ,mercury lamp,high-pressure sodium lamp,metal halide lamp.3.Can be matched with lamp dome reflector. Features ... -250IP56,WF110-14 3/4E27ExedIIBT4 Supplied with light source Lamp voltage Self-ballasted mercury vapor lampIncandescent lampHi-mercury vapor ...