What kind of lamp shade is this
The shape matches the existing iron wire, the round ball bottom cylinder. The use of the site, such as coal mine, communication machine room, power engine room, street lamp, etc., is to prevent the sudden burst of illumination lamps and lanterns, the people and equipment that harm to its illumination range.
This is a place for special riot lamp shade, it should have a glass cover, or ground glass, transparent or frosted glass, anyhow is thick glass cover
Explosion-proof lamp shade, the glass cover has been damaged, used for inflammable, explosive, outdoor (wet) place
