Light Block Assembly Lamp Type Incandescent Lamp Voltage 440 to 480 V AC Terminal Connection Screw Clamp 22 mm Lamp Module Type Transformer Metal Material of Construction IP Rating 20 Standards CSA C22.2 No 14 EN/IEC 60947-1 EN/IEC 60947-5-1 EN/IEC 60947-5-4 EN/IEC 60947-5-5 JIS C8201-1 JIS C8201-5-1 UL 508