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90+ CRI
Nominal CCT of 5000K
The Ultimate White Light
Benefits
Bring Daylight Indoors!
Features
• High CRI 90+
• High CCT 5000K
• Full Spectrum
• The Color of Natural
Sunlight!
Benefits
• Objects appear as they would outdoors
• Blues are true blue
• Whites are whiter
• Reds are more vibrant
Full Spectrum
• Spectral emission in all parts of the visible
spectrum and in the near UV
• CCT of 5000K
• CRI of 90+
Natural White lamps are a full spectrum product!
Natural White
Daylight at 5000K
Light output in all parts of
visual spectrum
High CCT
Color Temperature
Name CCT Range Description
“27K” 2700 - 2800K Very Warm...incandescent color
(2750K)…only available in a coated version
“3K”
3000 - 3200K Warm…close to halogen lamp color
(clear 3200K, coated-3000K)
“4K”
3700 - 4000K Neutral…close to fluorescent or mercury
“cool white”(clear-4000K, coated-3700K)
“5K”
5000K
Daylight…close to color of the sun.
Often called a “full spectrum” source
“6K”
6500K
Daylight…close to average outdoor sky color
“10K” 10,000K
Blue-White…close to clear blue sky
color….for aquarium lighting
What is CRI?
Color Rendering Index
• A numeric indication of a lamp’s ability to render
individual colors accurately relative to a standard
• CRI value is derived from a comparison of the
lamp’s spectral distribution to the standard at the
same color temperature
Features
• Uni-Form pulse start technology
- Uni-Form arc tube
- Weldless mount
- UV Shield shroud
• Opti-Wave ballast technology
• Workspaces and areas look
brighter
• Tasks, such as reading, become
easier to perform
• More lamps operating to rated life
• Increased lumen maintenance
• More consistent color from
lamp to lamp
A regular benefit of
20,000
A regular benefit of
• Twice as fast as ceramic
metal halide
• Don't be left in the dark!
• Lasts longer than standard metal
halide or ceramic metal halide
A regular benefit of
• Rated life 20000+ hours
• Fewer failures
• 70% survival at end of rated life
Weldless Construction
• Elimination of #1 cause of Failure Mode
• Most Durable HID Lamp Available
- Shipping
- Vibration
• More Consistent LCL
A regular benefit of
• ANSI type-O rating Complies with 2005 NEC
• Operate continuously without weekly shut-downs
• Protect merchandise and signage from fading
• Blocks nearly all the damaging ultraviolet light
A regular benefit of
• Improved lamp lumen maintenance (90%)
• Improved ballast efficiency
• Lower audible ballast noise
• “One Call” Warranty
A regular benefit of
Benefits and Features Overview
Benefits
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Superior Color Rendering - Blues are true blue,
whites are whiter and reds are more vibrant
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Lamps are brighter
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Lamps appear 13% brighter than standard
4000K lamps
Longer lamp life 20000+ and 70% survival rate at
end of life
50% faster warm-up time than standard pinch
body metal halide systems
Hot restart in less than half the time of CMH and
standard pinch body metal halide systems
Most durable lamp available
Excellent color uniformity and stability over life
Operate continuously without weekly shutdowns
ANSI type-O rating complies with 2005 NEC
Protects clothes, merchandise and signage
from fading
Blocks 98.8% of UV output
Quieter, lower audible noise than CWA
Improved lumen maintenance
Product Features

High CRI 90+
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High CCT 5000K
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Full Spectrum
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The color of natural sunlight
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High S/P Ratio of 2.1
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Uni-Form Pulse Start Technology
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Formed body arc tube
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Weldless mount
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UV Shield shroud
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Opti-Wave Ballast Technology
Photopic lumens (day time)
• Published lumen ratings
• Light measurement based on daytime
observations
Scotopic lumens (nighttime)
• Lumen measurements corrected for
nighttime vision
S/P Ratio
• The ratio of light measured by the
photopic and scotopic methods
S/P Ratio Comparisons for Outdoor Lighting
• The S/P Ratio of 5000K
daylight light sources is 2.1
• The S/P Ratio of 4000K light
sources is 1.65
• The S/P Ratio of 3000K light
sources is 1.4
• The S/P Ratio for yellow HPS
light sources is 0.64
What Does the S/P Ratio Tell Us about
Outdoor Lighting?
• Lamps with high S/P ratios (high
scotopic content) improve one’s
ability to see outdoors.
• A 4000K light source is at least
twice as effective for viewing at
night as HPS sources. Similarly,
a 5000K light source is more than
3 times as effective as HPS
sources.
What Does the S/P Ratio Tell Us about
Indoor Lighting?
• Lamps with high S/P ratios (high scotopic content)
improve one’s ability to see indoors.
• Human studies have shown that the S/P values,
though previously applicable to only nighttime
conditions, can be used to describe the "effective
lumens" of indoor lighting as well.
• Example: If two rooms are lit separately with 4000K
and 5000K lamps to equal photopic luminance, the
5000K room will appear at least 13% brighter.
What are “Effective Lumens”?
• As defined by Dr. Ian Lewin, the term “effective
lumens” describes the modified lumen output of
a lamp, taking into account the shifting color
sensitivity of the eye at low light levels.
• The Effective Lumen rating reflects the lumen
rating of Natural White lamps is given relative to
4000K lamps. The formula used to determine
this rating indoors is (S/P)0.5. This provides the
end user, lighting designer or contractor with an
accurate comparison of traditional 4000K lamps
to 5000K lamps.
How does this relate to Natural White?
With a high S/P ratio of 2.1, Natural White
lamps provide customers with an:
• Improved ability to see indoors
• Improved nighttime vision
This makes Natural White an excellent
product for either indoor or outdoor lighting
applications. Combined with high CRI and
high CCT, the Natural White lamp/ballast
system features superior color rendering, as
well as all the benefits of Uni-Form arc tube
and Opti-Wave ballast technology.
Watts Lamp Description
310
MP 310W/BU/ED37/UVS/PS/950
310
MP 310W/C/BU/ED37/UVS/PS/950
340
340
MP 340W/BU/ELAMP/PS/950
MP 340W/C/BU/ELAMP/PS/950
375
375
MP 375W/BU/UVS/PS/950
MP 375W/C/BU/UVS/PS/950
775
MP 775W/BU/PS/950
Compact fluorescent
• 3500K
• 80 CRI
Ceramic metal halide
• 4000K
• 90 CRI
• High CRI
• High CCT
Uni-Form® Natural White™
• 5000K
• 90+ CRI
Available in these wattages:
• 310W (Available Now)
• 375W (Available Now)
• 340W e-Lamp™ (Available in 2005)
• 775W (Available in 2005)