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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.


  • Promotes reasonable and repeatable product test procedures and performance criteria that are required for regulatory bodies and certification labs
  • Promotes lamp safety in conjunction with Underwriters Laboratories (UL) and CSA
  • Works with the Consumer Product Safety Commission on related consumer issues
  • Addresses fluorescent and high intensity discharge lamp disposal issues and legislation
  • Advises the Department of Energy and Environmental Protection Agency Laboratories on Compact Fluorescent Lamp Energy Star? and Energy Star Buildings programs
  • Advocates market-based approaches to enhance the use and penetration of energy-efficiency technologies
  • Develops Standards with the American National Standards Institute (ANSI) and the International Electrotechnical Commission (IEC)


  • Luminaire manufacturers
  • Lighting designers
  • Niche residential consumers
  • Retrofit and new building construction
  • Specifiers


  • ?Lamprecycle.org provides a one-stop source of information about recycling lamps.

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