Signs
Maximum Illumination (watts per square foot) | ||
|---|---|---|
Lamp Type | Low-Illumination Area | High-Illumination Area |
Incandescent | 7.1 | 14.3 |
Quartz | 7.1 | 14.3 |
Fluorescent | 2.1 | 4.2 |
Mercury vapor | 2.1 | 5.7 |
Metal halide | 1.6 | 3.2 |
High-pressure sodium | 1.4 | 2.9 |
Maximum Illumination (watts per square foot) | ||
|---|---|---|
Lamp Type | Low-Illumination Area | High-Illumination Area |
Fluorescent | 8.0 | 12.0 |
Incandescent | 27.2 | 40.0 |
Signs
Maximum Illumination (watts per square foot) | ||
|---|---|---|
Lamp Type | Low-Illumination Area | High-Illumination Area |
Incandescent | 7.1 | 14.3 |
Quartz | 7.1 | 14.3 |
Fluorescent | 2.1 | 4.2 |
Mercury vapor | 2.1 | 5.7 |
Metal halide | 1.6 | 3.2 |
High-pressure sodium | 1.4 | 2.9 |
Maximum Illumination (watts per square foot) | ||
|---|---|---|
Lamp Type | Low-Illumination Area | High-Illumination Area |
Fluorescent | 8.0 | 12.0 |
Incandescent | 27.2 | 40.0 |