Accurate graphs, no. But I did download spectra for HPS, MH, warm-HPS, Warm-MH and cool-MH. AFter expanding and printing them I measure the emission at 10nm intervals (only HPS and MH so far). I ran the numbers and this is how it turns out:
For every lumen of HPS we need 2.6 lumen MH. This gives an R/B of 1.85, R/FR of 6.8, and an PAS efficiency of 54% (MH PAS efficiency sux). I'm going to run the HPS with cool-MH next and see if the numbers are any better. |