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BD PHOTOMETRICS

Spacing for minimum footcandle (fc) illumination on level ground:

Note: 1fc for commercial projects / .3fc for residential projects

 
Footcandles:
DistanceBD-10BD-20
2'1.72.6
4'.31.57
6'.10.13
8'.04.05
10'.02.03
12'0.10.2
14' .01
For conversion to lumens, multiply footcandles x 10.