1區(qū)、2區(qū)危險場所。 ⅡA、ⅡB、IIC類爆炸性氣體環(huán)境。 可配裝汞燈、金鹵燈. 適用于可燃性粉塵場所. Can be used in Zone 1 and Zone 2 dangerous places. Can be used in IIA、IIB、group explosive atmosphere. Suitable for mercruy vapor lamp,metal halide lamp. Can be used in flammable dust areas.