This is what happens when I get new lights and a par meter, plus a whole day off work. An extravagant at home test. I got super irie and had a blast. My GF thinks I am crazy.
[video=youtube_share;DwDw5FfpaDc]http://youtu.be/DwDw5FfpaDc[/video]
I took 4 measurements(in umol) from each parameter(1x1,2x2,...) and averaged them for each parameter, along with a center peak reading. I don't know how to make a footprint graph like growers house, but this way still gets the point across.
AT660 @24"
Center: 1637umol
2x2 avg:1058.75umol
4x4 avg: 293umol
AT660 @36"
Center: 1056umol
2x2 avg: 803umol
4x4 avg: 301.5umol
AT200 @18"
Center: 1208umol
1x1 avg:728.75umol
2x2 avg: 261umol
3x3 avg: 68.5umol
AT200 @24"
Center: 792umol
1x1 avg: 570.75umol
2x2 avg: 269.75umol
3x3 avg: 98.25umol
All that was very tedious and took a long time. But it was fun and let me play with my meter and new lights. I will get them hung up over the jilly's that are still going and do field test measurements soon. I can't wait to test all my lighting systems and others that I can get my hands on.