The Ultimate White Light 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!

Light output in all parts of visual spectrum 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 20,000 • More consistent color from lamp to lamp A regular benefit of

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

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 MP 340W/BU/ELAMP/PS/950 340 MP 340W/C/BU/ELAMP/PS/950 375 MP 375W/BU/UVS/PS/950 375 MP 375W/C/BU/UVS/PS/950 775 MP 775W/BU/PS/950

High CRI High CCT Compact fluorescent Ceramic metal halide • 3500K 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)