10 C.F.R. Appendix C to Part 436
(a) The following individual measures or set of measures must be considered for inclusion in each agency 10-year energy management plan:
(35) Lighting Fixtures—Includes measures to increase energy efficiency of lighting. The following reveals the relative efficiencies of common lamp types.
| Lamp type | Lumens watt | Improvement over tungsten |
|---|---|---|
| Tungsten lamp | 12 | X1 |
| Modern fluorescent lamp | 85 | X7 |
| Mercury halide lamp | 100 | X8 |
| High pressure sodium lamp | 110 | X9 |
| Low pressure sodium lamp | 180 | X15 |