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New ENERGY STAR SSL Requirements Ensure LED Bulbs Delight the Customer

On September 30th 2014, “ENERGY STAR Program Requirements Product Specification for Lamps (Light Bulbs)” will replace the “Integral LED Lamps Version 1.4”. We should look at dimming requirements in the new document, described in section 12, pages 19 and 20. Anyone familiar with designing dimmable LED bulbs and drivers is aware of the challenges that result from the availability of huge volumes of dimmers with very different performance in the market, and the significant trade-offs necessary to ensure the most widespread compatibility. However, ENERGY STAR has limited the compatibility requirements to only five different dimmers from at least two manufacturers.