... for GB3836.1,2,3-2000 ,IEC60079 standard request. NICE Safety-increased lightingApplication1.Used in Zone 1 and Zone 2 dangerous ... ,IIB groups explosive atmosphere.2.With incandescent lamp ,mercury lamp,high-pressure sodium lamp,metal halide lamp.3.Can be matched ... voltage(V)220Rated power(W)250300175,250150,250175,250 NICE Safety-increased lighting