1 and Zone 2 dangerous places. 
 Ⅱ A, Ⅱ B, explosive atmosphere. 
 Cast aluminum alloy outer-off, spray the surface. Diecasted AL-alloy shell with plastic-sprayed surface. 
 Users can sign free matching The transparent mark-plate can be chosen and matched to 
 user's requirement. 
 Electronic light-emitting plate, using the unique piezoelectric effect, is Electronic luminesence board type, uses special piezoelectricity 
 Often, it hardly electricity, emergency time of 2 hours or more, effect, under the normal, it hardly consume the fime it can llast 
 And maintenance-free, reduced operating costs. several hours in the emergency meanwhile, need no maintenaince 
 and reduce the operation cost use. 
 Built-in maintenance-free nickel-cadmium batteries, under normal power supply from the Under the normal power-supplying condition, the inner nickel-cadmium 
 Moving charge, accident or emergency lights turn on automatically when power outage. can recharge automatically, so that, the emergency lamp will turn no 
 automatically when the power lose because of accident or power failure. 
 Pipe or cable wiring. Suitable for both settlpipe and cable wiring. 
 Meet GB3836-2000, IEC60079 standard request. Suitable for GB3836-2000, IEC60079 standard request.