... headlamp LED Suitable for GB3836.1,2,3-2000 ,IEC60079 standard request. headlamp LEDApplication1.Used in Zone 1 and Zone 2 ... dangerous place and IIA,IIB groups explosive atmosphere.2 ... maintenance.Conduit wiring Suitable for GB3836.1,2,3-2000 ,IEC60079 standard request.Main ... 250300175,250150,250175,250 headlamp LED