The Physicist
Well-Known Member
Hi everyone,
I have not seen this anywhere so I figured I'd post my data. I measured the spectral intensity distribution of various grow light sources that many new growers use and compared it to sun light at noon in California. While I don't personally have a HPS/MH, that data has been around for over 40 years, google it. Note, spectrum measured with Ocean Optics HR2000+. By integrating the spectral intensity distribution with the measured Lux, one can calculate their exact PPFD/PAR. See the attached info below:
Sunlight:
T5 Tubes:
Full Spectrum Feit LED:
Cool CFL LED 100W Equivalent (Home Depot):
Optimized Side/Under Canopy Spectra:
Warm CFL LED equivalent 100W (Home Depot):
CMH 315W Phillips 3100k Spectra:
I have not seen this anywhere so I figured I'd post my data. I measured the spectral intensity distribution of various grow light sources that many new growers use and compared it to sun light at noon in California. While I don't personally have a HPS/MH, that data has been around for over 40 years, google it. Note, spectrum measured with Ocean Optics HR2000+. By integrating the spectral intensity distribution with the measured Lux, one can calculate their exact PPFD/PAR. See the attached info below:
Sunlight:
T5 Tubes:
Full Spectrum Feit LED:
Cool CFL LED 100W Equivalent (Home Depot):
Optimized Side/Under Canopy Spectra:
Warm CFL LED equivalent 100W (Home Depot):
CMH 315W Phillips 3100k Spectra: