Important! Rocky Mountain Power's planned changes to the incentives and equipment qualifications associated with our energy efficiency program have become effective as of February 16, 2015. For questions or additional clarification, please email HES@rockymountainpower.net.

Energy-Efficient Light Bulbs

energy efficient light cfl and led bulbs

Special
pricing
available

Twist and save with efficient CFLs and LEDs

Participating retailers offer discount pricing on qualified LED (light-emitting diode) and CFL (compact fluorescent light) bulbs. There’s no easier or quicker way to get on the path to greater home energy savings. Make the switch to ENERGY STAR® rated bulbs and lower your lighting costs by up to 75 percent. Look for our Rocky Mountain Power logo to find specially priced bulbs.

Long-lasting performance

ENERGY STAR qualified CFLs last up to 10 times longer than traditional incandescents and can save you up to $25 in energy costs per bulb. For even greater savings, consider ENERGY STAR rated LEDs, which offer outstanding efficiency and can last an incredible 25 years.

Get more lumens out of your watts

CFLs and LEDs should be judged by the amount of light they provide (lumens) rather than the amount of energy they consume (watts). The more lumens, the brighter the light.

Find the right color temperature

CFLs and LEDs produce varying shades of light measured in kelvin (K). Bulbs with lower kelvin numbers have a warmer color, while higher kelvin numbers have a cooler color. For light that most closely matches the color of an incandescent bulb, choose bulbs labeled “warm white” or “soft white."

We’ve outlined some common myths associated with CFLs to help customers better understand the benefits.

Learn about CFL recycling »

Qualifications & Incentives

  • Light bulbs must be ENERGY STAR qualified energy-efficient CFLs or LEDs.
  • No incentive application required, discount applied at time of purchase at participating retailers.
  • Customers may purchase no more than 25 bulbs per day.

Incentives and qualifications are subject to Utah Public Service Commission approval and may change with 45 days' notice. Additional terms and conditions may apply.

  • LED light at a price that shines
  • Spring lighting special: From now through May 17th, pick up super-efficient LED bulbs for a special discounted price at select Costco and Home Depot locations. Quantities are limited. Check the list below for participating stores.

    Store Name Address City / State Bulb / SKU Price
    Costco 3571 W. 10400 S. South Jordan, UT LED A-Lamp 3-pack / 144799, 906191 $4.99
    Costco 1818 S. 300 W. Salt Lake City, UT LED A-Lamp 3-pack / 144799, 906191 $4.99
    Costco 11100 Auto Mall Dr. Sandy, UT LED A-Lamp 3-pack / 144799, 906191 $4.99
    Costco 3747 S. 2700 W. West Valley City, UT LED A-Lamp 3-pack / 144799, 906191 $4.99
    Costco 5201 Intermountain Dr. Murray, UT LED A-Lamp 3-pack / 144799, 906191 $4.99
    Costco 3656 Wall Ave. Ogden, UT LED A-Lamp 3-pack / 144799, 906191 $4.99
    Home Depot 999 W. Riverdale Rd. Riverdale, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 1310 Park Centre Dr Salt Lake City, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 328 W. 2100 S. Salt Lake City, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 4581 S. 4000 W. West Valley, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 135 E. 11400 S. Sandy, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 1538 W. 9000 S. West Jordan, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 984 Wall Ave. Ogden, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 3398 Highland Dr. Salt Lake City, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 1595 East Frontage Rd. Park City, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 1518 S. Providence Center Ave. Cedar City, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 222 E. 2400 N. Tooele, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 9570 Highland Dr. Sandy, UT LED A-Lamp 3-pack / 1001004100 $5.00
    Home Depot 3852 W. 13400 S. Riverton, UT LED A-Lamp 3-pack / 1001004100 $5.00