... is convenient to carry and use and can elabo APPLICATION1. For the dangerous sites with explosive air mixture: 1division, 2division ... : T1~T4;4. Indoor and outdoor (IP55);5. Suitable for self-ballasted mercury vapor lamp, External-oscillation Hg light, sodium lamp ... can elaborate the highest efficiency during the emergency.8. suitable for GB3836-2000, IEC60079, GB12476.1-2000,IEC01241 standard request. ...