U.S. Department of Energy (DOE), lighting program manager JimBrodrick as the first spokesman made the report entitled the LED roadway lighting industry, state and market forecasts, Jim Brodrick in the report about the shortcomings of the success and limitations of LED roadway lighting solid-state lighting (SSL) technology used in other applications.
Brodrick First Department of Energy, concerned about the SSL and LED roadway lighting technology investment, citing the Department of Energy report released earlier this year, Brodrick said, if the seven kinds of traditional lighting applications all replaced by the LED roadway lighting may be annual energy savings 233 megawatt-hours (TWh) of electricity - enough to support the electricity of the nineteen million households.
Brodrick said that the LED used in recessed downlight lighting, outdoor area lighting, the performance of 2x2 feet dark light trough lighting and freezer lighting is perfect, but LED roadway lighting application containing only minor alteration of a light bulb lamps, linear replacement lamps and the performance of the concave circular ceiling lighting is not ideal.
Nevertheless, Brodrick said, or LED roadway lighting lamp light output and cost advantages in some applications applications, such as those hard to reach places for longer life of LED lamps.
In the center of the report of the United States SSL industry, talked about the LED lighting products, he said: "If you start from a blank sheet of paper design and come up with products that are really good." He also added that good The design must address all aspects of a lamp, including the LED roadway lighting chip, optical, electronic, thermal management and mechanical design.
But. 4 feet of linear LED lamps has been gradually improved, close to the efficiency of fluorescent lamps, directional LED light output and distribution is still not as good as the fluorescent light to diverge into the entire cylindrical.
In terms of color quality, Brodrick said, LED explosion proof manufacturers have made significant improvement, more stringent grading told the lighting manufacturer is of great benefit. The Department of Energy will continue its SSL multi-year work program plan, in order to improve the lumen output and performance targets. Performance, Brodrick said, we are seeking to achieve this goal of cool white and 258 lumens / watt in 2020.
He also said that the LED lamp is a good choice often occurs in the areas of vibration and climate extremes. Another example those containing only a small modification of a light bulb lighting, Brodrick said that the LED used in this technology has been getting better and better, but they are generally smaller than the incandescent light output, light color quality and light distribution.
He also describes the recent tests of the Department of Energy: The Department of Energy has purchased a 33 LED light products of eight large-scale retail stores in the United States for testing, results showed that the majority failed to meet the basic performance parameters, consumers are more satisfied with incandescent or halogen the lighting effect.