nominal cct of 5000k90+ cri the ultimate white light

Nominal CCT of 5000K90+ CRI

The Ultimate White Light

Bring Daylight Indoors!

Benefits

• High CRI 90+

• High CCT 5000K

• Full Spectrum

• The Color of Natural Sunlight!

Features

• Objects appear as they would outdoors• Blues are true blue• Whites are whiter• Reds are more vibrant

Benefits

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

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 skycolor….for aquarium lighting

High CCT

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

• Uni-Form pulse start technology- Uni-Form arc tube- Weldless mount- UV Shield shroud

• Opti-Wave ballast technology

Features

• 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

• Twice as fast as ceramic metal halide

• Don't be left in the dark!

A regular benefit of

• Lasts longer than standard metal halide or ceramic metal halide

• Fewer failures• 70% survival at end of rated life

• Rated life 20000+ hours A regular benefit of

Weldless Construction

A regular benefit of

• Elimination of #1 cause of Failure Mode• Most Durable HID Lamp Available

- Shipping- Vibration

• More Consistent LCL

• 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 Product Features• Superior Color Rendering - Blues are true blue,

whites are whiter and reds are more vibrant• Lamps are brighter

• High CRI 90+• High CCT 5000K• Full Spectrum• The color of natural sunlight

• Lamps appear 13% brighter than standard4000K lamps

• High S/P Ratio of 2.1

• Longer lamp life 20000+ and 70% survival rate atend of life

• 50% faster warm-up time than standard pinchbody metal halide systems

• Hot restart in less than half the time of CMH andstandard 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

• Uni-Form Pulse Start Technology• Formed body arc tube• Weldless mount• UV Shield shroud

• Quieter, lower audible noise than CWA• Improved lumen maintenance

• Opti-Wave Ballast Technology

Benefits and Features Overview

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

• 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

S/P Ratio Comparisons for 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 Outdoor 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 Does the S/P Ratio Tell Us

about Indoor Lighting?

• 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.

What are “Effective Lumens”?

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.

How does this relate to Natural White?

Watts Lamp Description310 MP 310W/BU/ED37/UVS/PS/950310 MP 310W/C/BU/ED37/UVS/PS/950

340 MP 340W/BU/ELAMP/PS/950340 MP 340W/C/BU/ELAMP/PS/950

375 MP 375W/BU/UVS/PS/950375 MP 375W/C/BU/UVS/PS/950

775 MP 775W/BU/PS/950

Ceramic metal halide • 4000K • 90 CRI

Uni-Form® Natural White™ • 5000K • 90+ CRI

Compact fluorescent • 3500K • 80 CRI

• High CRI • High CCT

Available in these wattages:• 310W (Available Now)• 375W (Available Now)• 340W e-Lamp™ (Available in 2005)• 775W (Available in 2005)