PAR, PUR, Lumens, Lux, and Kelvin Light Efficacy Calculator
I have only briefly played with the calculator, but I was using 1 x 1000W (the same numbers come up using 10 x 100W), 1 square meter with 1 meter depth and 50% reflector efficacy.
Here is a link to some background information on how Quantum meters measure light in W/m2 and umol/m2/sec.
Comparison of Quantum Sensors with Different Spectral Sensitivites
I would love to find more stuff like this, so post your links to other studies, articles, tables, etc relating to Photosynthetically Active Radiation (PAR) and Photosynthetically Usable Radiation (PUR) as they relate to different bulbs, lamps, and LEDs.
Lets keep this professional, technical, and scientific. Please leave opinions and Web bashing at the door.
Edited by TravisO, 25 August 2011 - 03:13 AM.