LED Lighting Standards Arrive
The Illuminating Engineering Society of North America (IESNA) published a documentary standard LM-79, which describes the methods for testing solid-state lighting products for their light output (lumens), energy efficiency (lumens per watt) and chromaticity.
In this case it's really thank goodness for regulation! And none too soon either.
The LED fixtures on the market have been all over the map in quality, and consumers have had no direction as to what was good or bad.
In the fall of 2008 you will begin to see Energy Star rated LED fixtures, which have been tested against these new standards, and you will be able to depend on the Energy Star logo to indicate products that meet the promise of LED lighting.