Spacing for minimum footcandle (fc) illumination on level ground:
Note: 1fc for commercial projects / .3fc for residential projects
Footcandles: | ||
---|---|---|
Distance | DL-10 | DL-20 |
2' | 1.5 | 3 |
4' | .31 | .88 |
6' | .14 | .33 |
8' | .08 | .14 |
10' | 0.3 | .08 |
12' | 0.1 | 0.3 |
14' | .01 | |
For conversion to lumens, multiply footcandles x 10. |