Explosion protection to-CENELEC-IEC-NEC Can be used inZone 2Zone 21 and Zone 22Class I, Zone 2Class I, Division 2, Groups A, B, C, D Available lamp (max.1000W):-Metal halide lamp (HIE)-High pressure sodium lamp (HSE) Two enclosure types: 400, 1000.Type 400: lamp and ballast are of integral type.Type 1000: lamp and ballast are split type. Enclosure in 316 stainless steel Type 400 is supplied without a lamp, PHILIPS lamps are recommended. Type 1000 is supplied with a lamp.