Tips: Indoor Lighting

You have many choices in energy-efficient lighting. The most popular light bulbs available are halogen incandescents, compact fluorescent lamps (CFLs), and light-emitting diodes (LEDs). Although they can initially cost more than traditional incandescent bulbs, over their lifetime they save you money, because they use less energy.

Illustration showing an LED flood bulb, and LED bulb, a CFL, and an energy-saving incandescent.

Lighting Choices Save You Money. Energy-efficient light bulbs are available in a wide variety of sizes and shapes.

Energy-Saving (also called Halogen) Incandescent Lighting

Energy-saving, or halogen, incandescent light bulbs are about 25% more efficient and can last up to three times longer than traditional incandescent bulbs. They are available in a wide range of shapes and colors, and can be used with dimmers.

CFL Lighting

CFL Bulbs. ENERGY STAR®-qualified CFLs use about 75% less energy and last up to 10 times longer than traditional incandescents.

CFL bulbs last about 10 times longer and use about one-fourth the energy of traditional incandescent bulbs. A typical CFL can pay for itself in energy savings in less than 9 months and continue to save you money each month.

You can buy CFLs that offer the same brightness and colors as traditional incandescent bulbs. Some CFLs are encased in a cover to further diffuse the light and provide a similar shape to traditional incandescent bulbs.

CFLs contain a very small amount of mercury and require special handling if they are broken. CFLs should be recycled at the end of their lifespan. Many retailers recycle CFLs for free. Visit epa.gov/cfl for cleanup and safe disposal steps.

LED Lighting

LEDs: A New Kind of Light. LED bulbs offer similar light quality to traditional incandescents, last 25 times as long, and use even less energy than CFLs. Choose ENERGY STAR-qualified LEDs for the highest quality and energy savings.

LED bulbs are rapidly expanding in household use. ENERGY STAR-qualified LEDs use only about 20%-25% of the energy and last up to 25 times longer than traditional incandescent bulbs. They come in a variety of colors, and some are dimmable or offer convenient features such as daylight and motion sensors.

In addition to standard screw-in bulbs, you'll find LEDs in desk lamps, kitchen under-cabinet lighting, and even holiday light strings.

Indoor Lighting Tips

Replacing 15 inefficient incandescent bulbs in your home with energy-saving bulbs could save you about $50 per year. For the greatest savings, replace your old incandescent bulbs with ENERGY STAR-qualified bulbs.
Visit ENERGY STAR to find the right light bulbs for your fixtures. They are available in sizes and shapes to fit in almost any fixture and provide the greatest savings in fixtures that are on for a long time each day.
When remodeling, look for recessed light fixtures or "cans" which are rated for contact with insulation and are air tight (ICAT rated).
When replacing incandescent bulbs from recessed light fixtures, use energy-efficient bulbs that are rated for that purpose. For example, the heat buildup in downlights will significantly shorten the life of spiral CFLs.
Consider purchasing ENERGY STAR-qualified fixtures. They are available in many styles, distribute light more efficiently and evenly than standard fixtures, and some offer convenient features such as dimming.
Controls such as timers and photocells save electricity by turning lights off when not in use. Dimmers save electricity when used to lower light levels. Be sure to select products that are compatible with the energy-efficient bulbs you want to use.
Keep your curtains or shades open to use daylighting instead of turning on lights. For more privacy, use light-colored, loose-weave curtains to allow daylight into the room. Also, decorate with lighter colors that reflect daylight.