General Service Lamps (GSLs)


Robin Yochum
Energy Program Manager
775-434-3087

General Service Lamps (GSLs)

In August 2020, the Director of the Governor’s Office of Energy adopted regulation R100-19 pursuant to NRS 701.260 as amended under AB 54 (2019).  Regulation R100-19 sets a minimum standard of energy efficiency of 45 lumens per watt of electricity consumed that must be produced by General Service Lamps sold in Nevada on and after January 1, 2021.  

    What are General Service Lamps?

    General Service Lamps (GSLs) refer to lighting applications traditionally served by general service incandescent lamps (GSILs), also known as "A-type" bulbs.

    The majority of lighting in a residence is covered under the new standard and definitions.

    Description and images of some commonly covered bulbs are below. For detailed information on covered bulb specifications under the updated standard click  here.  

    Included in the new standard are, General Service Incandescent Lamps (GSILs), Compact Fluorescent Lamps (CFLs) and General Service LED Lamps. These are the most commonly used lightbulbs, generally the pear-shaped bulbs. Common applications are table side lamps and light fixtures that are used daily. 

    If each resident replaced all of their inefficient lighting with the updated standards, Nevada residents could save over $81 annually on their utility bills, according to a report published by the Appliance Standards Awareness Project (ASAP).

    Traditional incandescent bulbs halogen incandescent bulb  compact fluorescent bulb LED bulb
    Traditional incandescent bulbs waste a lot of energy as heat in order to create light.  They last about one year, on average Improved halogen incandescents use up to 30 percent less energy than traditional light bulbs and can last three times as long. Curly compact fluorescent bulbs use up to 75 percent less energy than traditional bulbs and can last for 10 years. But they can be slow to brighten and have a colder light quality. LED bulbs, or light emitting diodes, use up to 85 percent less energy than traditional bulbs and can last for 25 years, without some of the drawbacks of compact fluorescents.