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Introduction to LED Lights Efficiency Standards Carried out in USA
Energy efficiency standards carried out in America in recent years mainly include: Energy Star, DLC( The Design Lights Consortium) and LED Lighting Facts. This article will give an introduction to the different LED lights efficiency standards and their different application field.
LED Lighting Facts: LED Lighting Facts is a program of the U.S. Department of Energy that showcases LED products for general illumination from manufacturers who commit to testing products and reporting performance results according to industry standards. All LED lights labeled “LED Lighting Facts” should pass IES-LM-79-08 test report tested by approved labs that are accredited by EPA. Five KPI are optical output(lm), power input(W), luminous efficacy(lm/w), CRI and CCT. As for LED lighting manufacturers, their SSL products for general illumination should pass electrical test in accordance with IES LM-79-08. The final test data is subject to NVLAP recognition. In October 2012, U.S. Energy Administration SSL project has newly added two additional optical targets: QA(Quality Assurance) and LM(Luminous Maintenance Rate).(Note: LM is based on LM-80&TM-21).
DLC(The Design Lights Consortium) is a project of （Northeast Energy Efficiency Partnerships （NEEP）），whose mission is to serve the Northeast and Mid-Atlantic to accelerate energy efficiency in the building and commercial sector through public policy, program strategies and education. LED lamps listed in DLC apply to those exclusive in Energy Star. Currently Technical Requirement Table v2.1 covers 37 primary products: outdoor wall lamp, LED flood light, mining lamps, LED tube lights, etc. Technical requirements include luminous flux, zonal flux, conversion efficiency, CCT, LM, PF, THD and so on; of which PF≥0.9 and THD≦20%. Test data is subject to NVLAP recognition.
Energy Star ENERGY STAR is a voluntary program advocated by U.S. Environmental Protection Agency (EPA) and Department of Energy(DOE) that helps businesses and individuals save money and protect our climate though energy efficiency. Although it is voluntary project, products labeled “Energy Star” are highly accepted in America.
At present Energy Star technical requirements that are suitable for LED lights products primarily targets LED light bulb, in which electrical parameters, optical parameters, LM and lifespan are specified in details. LED lamp lifespan is evaluated according to L70 in Energy Star.
In the near future, 80% conventional lighting products shall be replaced by new light source. LED light source has promoted the whole industry development, including LED lighting application field, relative certification and technical test project, etc. More energy standards requirements will in turn enhance the entire industry.