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| Supplemental Therapy |
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| FLUORESCENT CHOICES ILLUSTRATED |
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KEY:
Color Temperature in Kelvin
Original Designation ( & CRI)
Today's Economy Improved Version ( & CRI)
Today's Better Improved Version ( & CRI)
Useful Scotopic Energy ( - )= Little, (+)Some, (++) Enhanced
Additional Notes Below |
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3000K
Warm White (54) Deluxe WW (74)
SP30, SPEC 30, 730, Kitchen Bath (75)
SPX30, 830 (85)
Scotopic: (-) |
3500K
White (--)
SP35, SPEC 35, 735 (75)
SPX35, 835 (85)
Scotopic: (-) |
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3700K
Natural (90-)
Excellent for meat displays, vanity mirrors
Scotopic: (-) |
4100K
Cool White (64) Deluxe CW (90)
SP41, 741, Residential Light (75)
SPX41, 841 (85)
Scotopic: (-) |
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5000K
Lumichrome 1XC T8 & T12 (96)
Phillips F32T8 TL950 (98)
Scotopic: (+) |
5600-6800K
Some Full Spectrum Brands (90-92)
(some can become greenish in a short time)
Scotopic: (+) |
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6500K
Lumichrome 1XX T8 & T12 (98)
SP65, 765 (75)
SPX65, 865 (85)
Scotopic: (+) |
7200K
The Skylighter (TM) (95)
Loaded Spectrum
Scotopic: (++)
Extra scotopic peak |
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3000K "Warm Color". Not suggested for general ambient lighting as it can make spaces seem smaller, dingy, and people appear ruddy and yellow. Unsatisfactory color rendering. Best suited to creat accents within an area otherwise lit with a cooler light source.
3500K Used to be named "white". While a warm color, with similar drawbacks as the 3000K lamp, including a lack of scotopic energy. Will cause inventory to color shift.
3700-3900K Natural: This clean pinkish light was a mainstay for meat displays. The original "Natural" lamp is fading from the market. Several companies now use the name natural to describe 5000K lamps rather than the older enhancing lamp.
4100K Cool white: The inexpensive work horse. 1938 technology with very poor color rendering, no scotopic use, and a green/ yellow hue gives a drab, greyish look to fleshtones. Standard cool white is to be avoided at all costs.
5000K Many trade names, including full spectrum. Close reproduction of summer noon sunlight, usually very good color rendering. Bright and crisp. Some scotopic benefits.
5500-6800K: Full spectrum: Many brand names. Most approximate noon sunlight, although deficient in the reds. Lower lumen output is noticable, as the scotopic energy is not adequate to compensate. Some turn greenish rather quickly.
6500K Originally named Daylight, the phosphor has been updated. Renamed Daylight Deluxe. Some scotopic energy.
7300K The Skylighter. Accurate color rendition of the rainbow of color.! Enhanced scotopic formula allows super visual accuity. Contrasts well with halogen spots, creating highlights that stand out. Colors truly "pop".- including reds. Creates virtual skylights from standard fixtures. |
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