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How Energy-Efficient Light Bulbs Compare with Traditional Incandescents

July 28, 2014 - 11:39pm

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Energy-efficient light bulbs are available today and could save you about $50 per year in energy costs when you replace 15 traditional incandescent bulbs in your home.

Energy-efficient light bulbs are available today and could save you about $50 per year in energy costs when you replace 15 traditional incandescent bulbs in your home.

Compared to traditional incandescents, energy-efficient lightbulbs such as halogen incandescents, compact fluorescent lamps (CFLs), and light emitting diodes (LEDs) have the following advantages:

  • Typically use about 25%-80% less energy than traditional incandescents, saving you money
  • Can last 3-25 times longer.

Today's energy-efficient bulbs are available in the wide range of colors and light levels you've come to expect. While the initial price of energy-efficient bulbs is typically higher than traditional incandescents, newer bulbs cost less to operate, saving you money over the life of the bulb. Many of the newer bulbs last significantly longer than traditional bulbs, so you won't need to replace them as often.

The table below compares a 60 watt (W) traditional incandescent with energy efficient bulbs that provide similar light levels.

Comparisons between Traditional Incandescents, Halogen Incandescents, CFLs, and LEDs

 

60W Traditional Incandescent

43W
Energy-Saving Incandescent

15W CFL

12W LED

60W Traditional  43W Halogen 60W Traditional 43W Halogen

Energy $ Saved (%)

~25%

~75%

~65%

~75%-80%

~72%

Annual Energy Cost*

$4.80

$3.50

$1.20

$1.00

Bulb Life

1000 hours

1000 to 3000 hours

10,000 hours

25,000 hours

 

*Based on 2 hrs/day of usage, an electricity rate of 11 cents per kilowatt-hour, shown in U.S. dollars.

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