What are the standards for LED street lighting?
Light efficiency, the good light theory is 100lm/W, 100 watt incandescent lamp is about 1200lm, that is to say, about 12W LED lamp luminous flux is equivalent to a 100 watt incandescent lamp, this is the origin of energy saving. Of course, in fact only theory, but also the specific consideration of power loss of LED, loss and attenuation of photothermal divergence, and so on, is not to say, here is not to write.
The average illuminance (Eav) = the number of single light flux Phi x lamps (N) by the coefficient of X space (CU) * (K) / maintenance coefficient of floor area (length * width) only need to know is that the parameters of LED, such as the beam angle is 120 degrees.
