... 2,3-2000 , IEC60079 standard request. saftey-increased light 400WApplication1.Used in Zone 1 and Zone 2 dangerous place ... and IIA,IIB groups explosive atmosphere.2.With incandescent lamp ,mercury lamp,high-pressure sodium lamp,metal ... G")Lamp socketE-markBCD-250IP56,WF110-14 3/4E27ExedIIBT4Supplied with light sourceLamp voltage Self-ballasted mercury vapor lampIncandescent lampHi-mercury ...