followed by the world's first 60 W equivalent LED lamp in 2010, and a 75 watt equivalent version in 2011. The Illuminating Engineering Society of North America (IESNA) in 2008 published a documentary standard LM-79, which describes the methods for testing solid-state lighting products for their light output (lumens), efficacy (lumens per watt) and chromaticity.

As of 2016, in the opinion of Noah Horowitz of the Natural Resources Defense Council, new standards proposed by