Storey 6 meters, industrial and mining lights should be a few meters?
Illumination = lamp power * luminous efficiency / area of illumination of a single luminaire. If you choose 100W mining lamp, is about 50 square meters of cloth on the theory of a lamp.
The light efficiency 100lm/W of the luminaire is calculated. If the illuminance of the working face needs to be 200lux, the theoretical value of the ratio between the power of the luminaire and the area of the illumination of the individual luminaire is about 2.
Storey 6 meters, then choose the light-emitting angle of 90 degrees or more LED mining lamps more appropriate, it is best to use 120 degrees. The specific distance between meters, a lamp, with the lighting, lighting requirements, as well as the light effects of lamps and lanterns are directly related to the power.
