Etc Source Four LED v1.6.0 User Manual Manuel d'utilisateur télécharger pdf (Page 16)

10 Source Four LED Profile v1.6.0 User Manual

Note About LED Fixtures

All LED sources experience some lessening of light output and some color shift over time.

Source Four LED Profile fixtures have complex thermal management systems to minimize

these changes. With typical usage, a Series 1 fixture will still achieve at least 70% of its

initial output after 50,000 hours of use (B50, L70). A Series 2 fixture will achieve 70% of its

initial output after 25,000 hours of use (B50, L70). In individual situations, LEDs will be used

for different durations and different levels. This can eventually lead to minor alterations in

color performance, necessitating slight adjustment to presets, cues, or programs.

All LEDs may exhibit a slight shift in output as they rise to full operating temperature. Source

Four LED Profile fixtures allow the selection of different power settings in order to balance

the competing requirements of thermal stability and brightness. Depending on the selected

setting, changes in output as fixtures warm up may or may not be visible to the eye.

Color Rendering Index and Color Quality Scale Ratings

Source Four LED Profile fixtures are evaluated for Color Rendering Index (CRI) and Color

Quality Scale (CQS) performance using measured output spectrum and optimized mix

solutions for a best spectral match to black body sources at 3200K and 5600K. Color fidelity

was also measured. These numbers may fluctuate slightly from fixture to fixture. This is a

normal characteristic of white LEDs, and this kind of variation is highly unlikely to be

apparent in most applications. The performance is the same for all fixture versions.

Source Four LED Profile luminaires provide excellent color rendering, particularly the color-

mixing versions. A Duv rating of 0.000 indicates that the color mix used was exactly on the

black body line, with no green or magenta tint.

Daylight and Tungsten fixtures use only white-type LEDs at a fixed color temperature in

order to maximize output and efficacy.

Fixture CRI CQS Color Fidelity Duv

Lustr+ Reg at 3200K 84 87 87 0.000

Lustr+ Reg at 5600K 92 92 92 0.000

Series 2 Lustr at 3200K 86 88 88 0.000

Series 2 Lustr at 5600K 90 91 91 0.000

Studio HD at 3200K 94 95 93 0.000

Studio HD at 5600K 91 87 86 0.000

Tungsten at 3000K 86 86 86 0.001

Daylight at 5600K 71 70 69 0.001

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Etc Source Four LED v1.6.0 User Manual Manuel d'utilisateur Page 16