How many W LED lamp can same as philips 150 W metal halide lamp brightness?
At the current manufacture level of domestic light source, () are new lamp luminous efficiency of metal halide lamp is higher than that of the current commercial LED light source, luminous efficiency, if coupled with the reflection efficiency of reflector, can think quite luminous efficiency (high brightness LED is another matter, because the price is also very beautiful), color rendering index. Can be calculated, if the current metal halide lamp is bright enough, can reduce the power of LED, individual estimate total power in the 70 ~ 90 w.
As for need more high power LED, in contrast, the first to confirm whether the brightness of the metal halide lamp, right now is too bright?
3 x1 m billboards with 150 w metal halide lamp effect should be good, because the billboard is the reflection to the human eye, so the human eye can see clearly, so if in see billboards within a certain distance, need certain average illuminance, namely lux Lx.
