... and IIA,IIB groups explosive atmosphere.2.With incandescent lamp ,mercury lamp,high-pressure sodium lamp,metal halide lamp.3.Can be matched with lamp ... ProtectiongradeCable's outside diameter(Φ,mm)Inlet's thread(G")Lamp socketE-markBCD-250IP56,WF110-14 3/4E27ExedIIBT4Supplied with light ... lampHi-pressure sodium lampMetal halldas lampRated voltage(V)220Rated power(W)250300175,250150,250175,250 HEAD ...