Wall pack luminaires are commonly used on buildings of all types, but they are notorious for poor control of light output, contributing to sky glow and light trespass problems. Because of the poor optical design, conventional wall packs have an effective light projection of only thirty feet at mounting heights of fifteen feet.
The new Low-glare Wall Pack from Gardco Lighting addresses the shortcomings of the conventional wall pack. This luminaire effectively projects light up to 45 feet from the base of the building at a mounting height of fifteen feet. This is achieved with a much improved semi-cutoff optical system, giving better illumination coverage while minimizing uplight.
Higher optical efficiency allows use of 33% fewer luminaires or 33% wattage reduction, reducing both installation and operating costs. The Low-glare Wall Pack features a ceramic metal halide lamp and a semi-cutoff tilted lens.
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| Cal Poly Pomona Equestrian Center Plaza |
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Gardco Lighting Low Glare Wall Pack |
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Wall Pack advanced lamp and optical combination |
OBJECTIVE: To develop a new low-glare wall sconce that addresses light output control shortcomings of the conventional wall pack
APPLICATIONS:
DESCRIPTION / FEATURES:
- 20-30% wattage reduction, reducing both installed and operating costs
- Ceramic metal halide lamp and a semi-cutoff optics
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| Post-retrofit |
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DEMONSTRATION LOCATION:
Cal Poly Pomona
Equestrian Center, central courtyard
Performance results/energy savings:
25% savings compared to typical metal halide systems
~7,000 kWh savings per year
Date of Install: Fall 2005
Timeframe of testing/evaluation: Fall / Winter 2005
Partners: Gardco Lighting (Philips Group Brand)
Sponsors: California Energy Commission |
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RESULTS:
- Most cost effective in planned renovation and new construction applications
- Great retrofit potential in offices, libraries, hallways, and many other locations that hoave not yet been retrofitted from T12 to T8 lamp/ballast
STATUS: The University of California/California State University (UC/CSU) and Investor-Owned Utility (IOU) Partnership Program has identified incentives for this technology that range from $550 to $150 per fixture.
The fixture tested at CSU Pomona was a pre-production unit and is not yet commercially available. A newer, more compact 70 W version ie being developed by Genlyte Group and is expected to be available in late 2008.
REFERENCE:
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