UFC 3 -520-01
June 10, 2002
Table F -1. Light Source Applications According to Source Color
CCT
Typical Light
Appearance
Appropriate Applications
(Kelvin)
Sources
2,000 2,500
High pressure
Very warm, similar to
Few. Refer to paragraph
sodium
candlelight.
F-6.6 regarding the use
of high pressure sodium
lamps.
2,700
Incandescent
Warm, similar to
Living quarters
Fluorescent
incandescent light.
Dining rooms
Compact
Lobbies and waiting
fluorescent
rooms
Formal meeting spaces
Formal offices
3,000
Tungsten halogen
Warm, but crisp when
Living quarters
Fluorescent
compared to
Dining rooms and
Compact
incandescent. Also,
cafeterias
fluorescent
referred to as "Warm
Lobbies and waiting
Metal halide
White".
rooms
Formal meeting spaces
Formal offices
Retail sales and display
3,500
Fluorescent
Neither cool nor warm.
General lighting in a wide
Compact
Also, referred to as
variety of applications.
fluorescent
"White" and "Natural".
4,100
Fluorescent
Cool. Also, referred to
General lighting in work
Compact
as "Cool White".
areas.
fluorescent
Metal halide
5,000
Fluorescent
Very cool, bluish.
Task lighting for
Compact
Entering typical daylight
precision color tasks
fluorescent
color temperature range.
Special metal halide
6,500
Fluorescent
Very cool, bluish.
Task lighting for
precision color tasks
7,500
Fluorescent
Very cool, very bluish.
Task lighting for
precision color tasks
10,000
Fluorescent
Very cool, very bluish.
Task lighting for
precision color tasks
F-4.3
Source Color Quality . Select the color rendering index (CRI) of electric
lamps appropriate for the application. Appropriate CRI values are listed in Table F -2.
F-5
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