I've unearthed a long forgotten light meter and took light readings on both Kessils. Readings are in footcandles: best I can do at this point. Since I will be lighting a 120p, I suspended both lamps 16" apart and 24" high as a starting point. Interesting to see that the light readings were a bit higher in between both lamps than directly under. It suggests that I could separate the lamps to attain better distribution. Take note however that I "guestimate" error to be around 10%, if not more. Obviously a PAR meter will give the real story here, but the readings suggest nonetheless a significant drop off at the outer perimeter of the light field.
Originally Posted by samamorgan
I haven't checked into the kessil fixture much, but i assume it uses some sort of reflector or lens.
Yes there is a small lens.