Spacing for minimum footcandle (fc) illumination on level ground:
Note: 1fc for commercial projects / .3fc for residential projects
| Footcandles: | ||
|---|---|---|
| Distance | FG-10 | FG-20 |
| 4' | 1.2 | 1.7 |
| 6' | .51 | .94 |
| 8' | .10 | .19 |
| 10' | .05 | |
| For conversion to lumens, multiply footcandles x 10. | ||
