Retrotec USACE - Manual (Page 225)

Appendix D D95
D.5.10 Using Incandescent Lighting for General Lighting Instead
of Compact Fluorescent Lighting (Ineffi ciency)
Figure D150. T12 with 1½-in diameter and T8 with 1-in diameter (left); T12 magnetic ballast
(right).
Compact fl uorescent technology has progressed to the point that it has over-
come the disadvantages that were present compared to incandescent light-
ing when CFLs were fi rst introduced. Initially, CFLs provided poor color
rendering and were only available in a limited number of shapes, sizes, and
socket types, limiting retrofi t opportunities. Now CFLs compete favorably
with incandescents in color rendering and are available in a wide variety of
shapes and sizes to replace incandescent lamps while generating far less heat
and operating up to three times more effi ciently (Figure D150). Compact
fl uorescents typically consume 25–30% of what an incandescent consumes
with comparable light output.
Figure D151. Compact incandescent lamps used for
general lighting.
Most incandescent lamps used for general lighting can be replaced by compact
fl uorescent lamps (Figure D151). Look for CFLs with similar lumen outputs
to the incandescent lamps you are replacing and color temperatures that work
with other lighting in the space.