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What bulb is best for you?

To find out what programs are available in your State visit The Department of Energy’s DSIRE site at:

CFL Information:

How do CFL bulbs work?

Click for ENERGY STAR explanation.

Click for Wikipedia explanation.

Comparison between CFL’s and incandescent lamps wattage.

CFL 9-11W = 40W Incandescent

CFL 13-15W = 60W Incandescent

CFL 18-20W = 75W Incandescent

CFL 23-26W= 100W Incandescent

Color Temperature and Kelvins.

Soft White – 2,700 Kelvins

Cool White – 4,100 Kelvins

Day Light – 6,500 Kelvins

Soft White (sometimes referred to as warm white) (2700K) is a more traditional soft light. It most closely reproduces the Kelvins (color) of an incandescent light bulb. As you go higher in color temperature (higher Kelvins, 6,500K) the color is a bright bluish light.

Finding the correct color temperature for lighting different rooms in your house will depend on each room and your needs. For example in the living room where you may not need bright lighting you may choose a softer more traditional soft white light (2,700K). In your kitchen or office you may want to choose a cool white color temperature (4,100K) for bright lighting. In the bathroom you may want the lighting to be as day light, you would then choose a higher color temperature (6,500K).

When lighting your home, it is a good practice and a great way to cut your energy cost by finding the correct color temperature you need, and then choosing a bulb with a lower wattage.

The rated life of a CFL bulb:

The rated life is based on continuous use for 3 hours a day every day, in a recommended setting.

Mercury in CFL bulbs:

There is a small amount of Mercury in all CFL bulbs so that they can operate. If the CFL is not broken there is no exposure to Mercury and are safe to use as a incandescent bulb. For more information on Mercury in CFL’s see ENERGY STAR Fact Sheet. For information on recycling a bulb that has burned out see EPA recycling. If the bulb breaks follow these EPA recommended steps.

LED Information:

What does LED stand for?

LED is short for Light-Emitting Diode.

What is the rated life of an LED bulb?

LEDs are known for being very long-lasting and many LED bulbs have a rated life of up to 50,000 hours. They last about 50 times longer than a typical incandescent bulbs.

Where can LED bulbs be used?

Most LED bulbs are a direct screw in replacement for standard household light sockets.

Are LED bulbs green?

Yes, LED bulbs are very green. Since LED bulbs use less electricity to produce light they help to reduce greenhouse gas emissions from power plants and this helps lower electric bills.

Do LED bulbs generate a lot of heat?

No, LED bulbs generate very little heat which is why LED bulbs are very energy efficient. Even though LED bulbs give off very little heat they should not be placed in a completely enclosed fixture. They still need to allow the heat they do produce to dissipate for the heat sink.

The Advantages of LED bulbs:

(1) Extremely long rated life. (2) Use much less electricity. (3) Do not contain any mercury. (4) Do not emit UV or infrared radiation. (5) Extremely environmentally friendly. (6) Can be mounted at any angle. (7) Give off very little heat.

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