14k vs. 20k metal halide bulbs

[reedrodz]

14k vs. 20k metal halide bulbs, does anyone knows the diffrence between the two aside from the color it produces?

 

[DarG]

Generally speaking ... the higher the color temp. as in K (K = Kelvin) the lower the output of the bulb. There are exceptions. Some 20000K's may be brighter than some 14000K's and some 14000K's may actually look bluer than some 20000K's, but in general, most of the timer, the higher the K the bluer the bulb and the lower the par.

 

[nyvp]

yes each bulb is different but from high par 6500 to 20k blue 6500 Yellow closest to true sunlight Must use actinics if for viewing
10k white/yellow highest par most like actinics
14k white/blue mid point between color and par some use actinics
20 blue/white dont use actinics some do still.

Remember each company rates its own bulbs so one Co. 14k may be closer to a 10k and another Co. may be closer to a 20k

Hope this helps