Lighting Design

Photo: Adrian Grycuk. License: CC BY-SA 3.0.


Energy-efficient lighting is seriously misunderstood by many in the green building industry. Long associated with CFLs and poorly lit spaces, today’s energy-efficient lighting uses state-of-the-art LEDs, controllers, and optics to direct light just where you need it.

Outdoors, LED streetlamps use advanced sensors and are optimized for maximum efficiency, yet they produce little light pollution that could disrupt local wildlife.

Indoors, LEDs can be integrated into DC power systems via power-over-ethernet cables. The color can be changed to help increase worker productivity, improve patient moods, or mimic natural outdoor light to help maintain our natural circadian rhythms.

New forms of LED and OLED lighting are revolutionizing how we light our buildings.

  • GU24: New Pin-Base for CFLs, LEDs
    October 5, 2011

    News Analysis

    GU24 fixture-lamp combinations ensure that high efficacy lighting systems don't revert to incandescents.

  • CFLs Aren't Perfect
    August 2, 2007


    The lifespan of compact fluorescent lamps (CFLs) is shortened by frequent switching on and off, but in most applications they're worth using anyway.

  • Full Line of Residential LED Lighting Arrives
    July 9, 2006

    Product Review

    In June 2006, Permlight Products, Inc., and Progress Lighting announced the introduction of a complete line of LED residential lighting products. To be sold as the HI-EF line, the licensing of Permlight's Enbryten Down line promises high-efficacy luminaires that meet strict California energy standards.

  • Fiber-Optic Luminaire Mixes Sun and Electric Light
    December 5, 2006

    Product Review

    A new system from Sunlight Direct includes a roof-mounted concentrating mirror that tracks the sun, fiber-optic cables, and conventional-looking light fixtures on the ceiling that deliver a calibrated mix of sunlight and electrical light.

  • Cold-Cathode CFLs from Litetronics
    April 5, 2007

    Product Review

    The same technology that backlights laptop computer screens is making its way into decorative and area lighting.

  • Reflector LED Lamps from Lighting Science Group
    April 5, 2007

    Product Review

    A manufacturer has introduced the first full-dimming LED lamp bright enough for general illumination.

  • LED Downlight from LLF-Most Efficient on the Market
    October 30, 2007

    Product Review

    A new LED downlight module from LED Lighting Fixtures, Inc., offers high efficacy and good light quality using a unique way of producing a diffuse, white light.

  • Convia's Energy-Management Platform
    June 30, 2009

    Product Review

    Convia and Wiremold have partnered to provide a modular, highly adjustable energy distribution infrastructure and reporting tool.

  • Modular LED Lighting Enters the Mainstream
    October 29, 2010

    Product Review

    Modular LED lighting systems by Bridgelux, Cree, GE, Philips, and Xicato allow the LEDs to be changed without requiring replacement of the entire fixture.

  • Prize-Winning LED Outdoor Area Light
    December 27, 2011

    Product Review

    EvoLucia's SCH cobra head uses the company's "Aimed Optics" technology to direct light from the LEDs onto an even pattern on the ground, maximizing the efficacy of the light.