by jbs042710d3 — April 28, 2010—The National Electrical Manufacturers Association (NEMA) has published SSL 3-2010 High-Power White LED Binning for General Illumination, which is NEMA’s first solid state lighting (SSL) standard. The standard is intended to make energy-efficient SSL technology easier for integrators to adopt on a large scale.
SSL 3 provides standardized categorization areas (bins) for the colors of “white” light-emitting diodes (LEDs) used for general lighting. LED manufacturers use binning to manage variations in LED performance during mass production. When manufacturers use different binning structures and labeling, LED system integrators and assemblers face unnecessary testing, verification, qualification, and validation processes.
The bin structures established by SSL 3 promote continuity among suppliers. The standard also sets a level of expectation for color characterization resulting in a reasonable number of bins for stocking purposes. The bin structures are based on ANSI color standards for fluorescent lamps as specified in ANSI_NEMA_ANSLG C78.377-2008.
