Spacing for minimum footcandle (fc) illumination on level ground:
Note: 1fc for commercial projects / .3fc for residential projects
Footcandles: | ||
---|---|---|
Distance | AL-12 | AL-18 |
4' | 1.1 | 1.4 |
8' | .23 | .27 |
12' | .07 | .11 |
16' | .01 | .03 |
18' | .01 | |
For conversion to lumens, multiply footcandles x 10. |