Light Source
            Light sources are 
devices whose primary function is to produce visible or near-visible 
radiant energy for general illumination and specialty applications. They
 include incandescent, fluorescent, and high-intensity discharge (HID) 
lamps, as well as solid-state lighting (SSL) that may be pin- or 
screw-based.
SSL covers light-emitting diodes (LEDs), laser 
diodes, organic LEDs, and any other semiconductor light sources; control
 gear; LED-drive circuits; and microwave power supplies for 
electrodeless lamps.
Other products include decorative, infrared, 
PAR, projection, reflector, sealed beam, special-purpose, and three-way 
incandescent lamps, as well as tungsten halogen lamps.
Members 
are leaders in developing a means to measure and define acceptable 
limits for temporal light artifacts (i.e., flicker and stroboscopic 
effects), with a focus on LED technology. They also address power 
quality, harmonics, photobiological issues, infrared radiation, and 
luminaire best practices.