Lighting

  1. Boosting Lighting Efficiency with Reflectors and Maintenance

    Learn how to pump up the efficiency of your existing fluorescent fixtures with two relatively simple measures: the addition of reflectors and the cleaning of existing louvers and lenses.

  2. Compact Fluorescent Lamps

    Compact fluorescent lamps (CFLs) use about one-third the energy of incandescent lamps and last about ten times as long. Learn how you can save energy and money by making the right CFL choice for your application.

  3. Daylighting Controls

    Daylighting systems use natural lighting to supplement electric lighting; they offer the potential to cut energy use, reduce peak demand, and create a more-desirable indoor environment, but careful planning and installation are required to achieve an effective daylighting system.

  4. Energy-Efficient Track Lights

    Track lighting provides directable beams of high-quality light for use in retail displays, galleries, museums, and residences. Learn about the many energy-efficient options now available to help you make the right choice for your application.

  5. Exit Signs

    Although exit signs (which must be lit 24/7) can take a bite out of your budget, new high-efficiency models can help you meet this business necessity and still save both energy and money.

  6. Fluorescent Ballasts

    Electronic fluorescent ballasts offer both performance and energy-efficiency improvements over typical magnetic versions. Learn the differences between ballast types and the potential to save energy and dollars for your application.

  7. Full-Size Fluorescent Lamps

    Confused about how to identify and understand the differences between the myriad available fluorescent lamps on the market today? Learn to make sense of the confusion and determine which lamp best fits your application.

  8. High-Bay Lighting

    The options for lighting high-bay spaces are expanding. Learn about the various technologies and how to determine which is most cost-effective for your application.

  9. High-Intensity Discharge Lamps

    High-intensity discharge (HID) lighting offers very high efficiency and energy savings of 50 to 90 percent over incandescent sources, but the options can be confusing. Learn about performance characteristics and energy consumption so you can determine which type is best for you.

  10. Indirect Lighting

    Indirect lighting, in which light is mainly distributed upward rather than directly onto a work surface, minimizes glare on computer screens and creates a soft, inviting environment for concentrated work. System design can be challenging; find out what you need to know to make the right decision.

  11. LEDs

    Light-emitting diode (LED) technology continues to improve; these lamps are becoming more common in business settings. Learn about the best applications and potential energy savings for this emerging and increasingly cost-effective technology.

  12. Light Output Declines with Time

    Lumen depreciation, an indication of the decline in lamp light output over time, is an important performance characteristic that varies with lamp type and fixture cleanliness. Learn about the depreciation of various lamp types and the benefits of keeping them clean.

  13. Lighting Controls

    Lighting controls are primarily used to turn lights off when they are not needed or dim them so that they produce no more light than necessary. Learn about the various options so you can choose the right system for your application.

  14. Lighting Occupancy Sensors

    Occupancy sensors have the potential to cut energy consumption by reducing the operating time and output of lighting systems,but a wide variety of issues need to be considered in order to achieve persistent savings. Learn about the factors you need to know before installing an occupancy sensor.

  15. Metal Halide Ballasts

    Although magnetic ballasts are still typically used with metal halide lamps, electronic ballasts are now coming on the market and offer a host of performance and energy benefits. Find out how to choose the best ballast for your metal halide lamps.

  16. Personal Dimming Controls

    Preferences for lighting levels vary widely in commercial buildings and personal dimming systems now make it feasible for individual workers to control lighting levels in their personal workspaces. Find out how these systems work and if they are right for your application.

  17. Power Reducers

    Power reducers are a retrofit option for cutting energy costs in a fluorescent or high-intensity discharge lighting system, and though they reduce energy costs, they simultaneously reduce light levels. Find out if this retrofit efficiency technology is right for your application.

  18. Remote-Source Lighting

    Although it is often less efficient than conventional lighting systems, remote-source lighting systems (often referred to as fiber-optic or light-pipe systems) have some unique performance characteristics. Find out how these systems operate and whether they would benefit you.

  19. Six Ways to Maintain Lighting Savings

    Learn several quick take-aways that will help savings persist throughout the life of your lighting system.

  20. Spot Versus Group Relamping

    Group relamping—replacing a set of lamps at a scheduled time—offers several benefits over spot relamping. Find out if this maintenance procedure is right for your application.