You can save money and help reduce greenhouse gas emissions and mercury discharges with compact fluorescent light (CFL) bulbs. Use our calculator to determine just how much every CFL will put in your pocket, compared to wasteful incandescents and other lighting technologies.

Changing 12345678910 60-Watt100-Watt lightbulbs to CFLs used 12345678910 hours per day (each)

would save you $35.86 yearly

based on the average electric rates in AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyomingthe nation

bulb type	average bulb cost	estimated bulb life	annual energy cost	annual savings
incandescent	$ 1	1.4 years 2,000 hours	$ 46.78	$ -
halogen energy savers	$ 5	2.1 years 3,000 hours	$ 31.19	$ 15.59
compact fluorescent (CFL)	$ 3	5.5 years 8,000 hours	$ 10.91	$ 35.86
solid state (LED)	$ 100	34.2 years 50,000 hours	$ 6.24	$ 40.54