Spacing for minimum footcandle (fc) illumination on level ground:
Note: 1fc for commercial projects / .3fc for residential projects
| Footcandles: | ||
|---|---|---|
| Distance | SP-10 | SP-20 |
| 2' | 1.7 | 2.6 |
| 4' | .31 | .57 |
| 6' | .10 | .13 |
| 8' | .04 | .05 |
| 10' | .02 | .03 |
| 12' | 0.1 | 0.2 |
| 14' | .01 | |
| For conversion to lumens, multiply footcandles x 10. | ||
SP Photometrics with G4 LED Replacement
