01 Jan '12, 2am

The Latest Testing Requirements for Solid-State Lighting...

The Latest Testing Requirements for Solid-State Lighting By Richard Comerford, Electronic Products The introduction of LED light sources is changing the way in which lighting products are labeled and described. Whereas in common parlance wattage is used to signify brightness, as in, “a 60-W bulb” LEDs change the correlation between input power and lumen output drastically: brightness equivalent to that of a 15-W LED bulb is very bright indeed. The need to change how bulb performance is specified has led to a federal government mandate for light bulbs this year that requires new package labeling – the Lighting Facts label (Figure 1). With the requirement, of course, came the need to perform standardized tests to obtain labeling data. Figure 1: All light bulbs sold in the U.S. must now be labeled using the above label formats. In addition to wattage, the labels include brigh...

Full article: http://www.digikey.com/us/en/techzone/lighting/resources/...

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