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CXA2540 датащи(PDF) 4 Page - Cree, Inc

номер детали CXA2540
подробное описание детали  Retail Track Light Reference Design
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производитель  CREE [Cree, Inc]
домашняя страница  http://www.cree.com/
Logo CREE - Cree, Inc

CXA2540 датащи(HTML) 4 Page - Cree, Inc

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XLAMP CXA2530/CXA2540 RETAIL TRACK LIGHT REFERENCE DESIGN
Copyright © 2013 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®, the Cree logo and XLamp® are registered trademarks
and EasyWhite™ is a trademark of Cree, Inc. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please contact Cree Sales
at sales@cree.com.
Characteristic
Requirements
Lumen maintenance
requirements: directional and
non-directional luminaires
The LeD package(s) / module(s) / array(s), including those incorporated into LeD light engines or GU24 based
integrated LeD lamps, shall meet the following L
70(6k) rated lumen maintenance life values, in situ:
• L
70(6k) ≥ 25,000 hours for residential indoor
• L
70(6k) ≥ 35,000 hours for residential outdoor, or commercial
Compliance with the above shall be documented with a Tm-21 lumen maintenance life projection report as
detailed in Tm-21, section 7. The report shall be generated using data from the Lm-80 test report for the
employed LeD package/module/array model (“device”), the forward drive current applied to each device, and the
in situ TmP
LeD temperature of the hottest LeD in the luminaire. In addition to Lm-80 reporting requirements, the
following information shall be reported:
• sampling method and sample size (per Lm-80 section 4.3)
• test results for each T
S and drive current combination
• description of device including model number and whether device is an LeD package, module or array (see
Definitions)
• ANSI target, and calculated CCT value(s) for each device in sample set
• Δ u’v’ chromaticity shift value on the CIE 1976 diagram for each device in sample set
• a detailed rationale, with supporting data, for application of results to other devices (e.g. LeD packages with
other CCTs)
Access to the TmP
LeD for the hottest LeD may be accomplished via a minimally sized hole in the luminaire
housing, tightly resealed with a suitable sealant if created for purposes of testing.
All thermocouple attachments and intrusions to luminaire housing shall be photographed.
CCT requirements: all indoor
luminaires
The luminaire (directional luminaires), or replaceable LeD light engine or GU24 based integrated LeD lamp (non-
directional luminaires) shall have one of the following nominal CCTs:
• 2700 Kelvin
• 3000 Kelvin
• 3500 Kelvin
• 4000 Kelvin
• 5000 Kelvin (commercial only)
The luminaire, LeD light engine or GU24 based integrated LeD lamp shall also fall within the corresponding
7-step chromaticity quadrangles as defined in ANSI/NEMA/ANSLG C78.377-2008.
Color rendering requirements: all
indoor luminaires
The luminaire (directional luminaires), or replaceable LeD light engine or GU24 based integrated LeD lamp (non-
directional luminaires) shall meet or exceed Ra ≥ 80.
Color angular uniformity
requirements: directional solid
state indoor luminaires
Throughout the zonal lumen density angles detailed above, and five degrees beyond, the variation of
chromaticity shall be within 0.004 from the weighted average point on the CIe 1976 (u’,v’) diagram.
Color maintenance requirements:
solid state indoor luminaires only
The change of chromaticity over the first 6,000 hours of luminaire operation shall be within 0.007 on the CIE
1976 (u’,v’) diagram, as demonstrated by either:
• the IeS Lm-80 test report for the employed LeD package/array/module model, or
• as demonstrated by a comparison of luminaire chromaticity data in Lm-79 reports at zero and 6,000 hours, or
• as demonstrated by a comparison of LeD light engine or GU24 based integrated LeD lamp chromaticity data in
Lm-82 reports at zero and 6,000 hours.
Source start time requirement:
directional and non-directional
luminaires
Light source shall remain continuously illuminated within one second of application of electrical power.
Dimming requirements
The luminaire and its components shall provide continuous dimming from 100% to 35% of total light output.
Step dimming, if employed, shall provide at least two discrete light output levels ≥ 35% of total light output and
not including 100% output.
Power factor requirements:
directional and non-directional
luminaires
Total luminaire input power less than or equal to 5 watts: PF ≥ 0.5
Total luminaire input power greater than 5 watts:
Residential: PF ≥ 0.7
Commercial: PF ≥ 0.9


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