The Us Department Of Energy Doe Has Announced It Compl - USAprice: contact company for price
range of lumen output and available luminous intensity distributions
must expand to better match conventional flood lights.
The US Department of Energy (DOE) has announced it has completed Series 15 testing of a group of 10 LED flood lights. The summary of the results has indicated there are several key areas in which LED flood lights should be improved to make them more competitive with conventional flood lights. These include higher lumen output, narrower spot distributions and a wider range of accessories to allow customization. The summary report is available at the DOE SSL website.
Lumen output vs. efficacy
The 10 LED flood lights tested represent a broad range of conventional luminaires designated as flood lights. As a result, performance varied greatly among the products. The LED flood lights performed well in terms of efficacy but most did not match the lumen output of the benchmark metal-halide lamp. CRI of the LED flood lights was in the range of typical metal-halide and CFL lamps, but the correlated color temperature (CCT) of several products exceeded that of conventional products (>5000K). In terms of luminous intensity distribution, the majority of the LED flood lights had wide distributions. Producing narrow spotlights with LED fixtures has proven difficult according to the report.
Jim Brodrick, the US DOE’s lighting program manager highlighted many findings from the tests in a recent SSL Postings. In talking about flood lights, Brodrick said “the focus this time was floodlights - not an easy category to nail down, given its broad and ambiguously defined nature. For that reason, drawing absolute conclusions regarding the performance of the 10 LED products tested in Series 15 (and compared with a benchmark conventional floodlight as well as data from an extensive review of manufacturer literature) would be inappropriate, as each could be effective for a given application.” He added, however, that relative to competitive flood lights, including high-intensity discharge (high-pressure sodium or metal halide) or CFL, where outputs can exceed 20, 000 lm, only one LED flood light in the Caliper study reached 8000 lm. Regarding customization through the use of modular lamps, reflectors and accessories, only some of the Series 15 flood lights offered this flexibility to specifiers. In addition, four of the ten lamps tested had at least one manufacturer’s claim that proved false in Caliper testing.
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Published date: April 24, 2013 -
- Business Description: Shenzhen Lead Opto Technology Co. Ltd is a professional manufacturer ofLED lighting, mainly produce LED High Bay Light, LED Flood Light, LED
Panel,LED Ceiling Light etc with OEM&ODM service. As an ISO 9001:2000
certified factory, we can meet the strict standards of CE, RoHS, FCC
certiticate, these strict producing standards guarantee our productsdistribute smoothly both in domestic and international markets.
At this moment, our Lead Group owns three factories in China . The earliest one produce LED lighting products ; The second Mould factory enter in the line of mould application business , such as the housing of LED High Bay Lights or Ceiling Light; The third factory mainly in charge of hardware mould design.As a high tech and leading enterprise in the LED Lighting industry, we always emphasize powerful R&D and producing capacity,having a professional engineer team in our R & D departments, all the engineers are experts in the line of LED illumination business which contain power research, structure design, optics design and heat dispersion.Thanks to our staff's persistent effort, we have developed very fast and achieved many breakthroughs in both hardware and software. Now we are able to provide you a variety of qualified Led lighting products for your choices.
Adhering to the principle of "Quality first, Customer utmost, Honesty and Innovative Pursuit", we will always try our best to satisfy various requirements from customers all over the world. To be your most reliable supplier of LED lighting is Shenzhen Lead Opto Technology Co. Ltd's best wish!
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