Frequently Asked Questions

• What are my lighting options?

The most common lighting types are incandescent, compact fluorescent lights (CFLs) and light emitting diodes (LEDs), All of them you can find it at Gateway Electric.

Incandescent lighting

The most common type of lighting used in the residential sector, though it is the least energy efficient. It has traditionally delivered about 85% of household lighting, are the least expensive to buy, but because the inefficiency and short life.

Incandescent light bulbs operate without ballasts. They light up instantly, providing a warm light, excellent color rendition and you can also dim them. (U.S. Department of Energy, 2012)

Fluorescent lighting

Fluorescent light bulbs use 25%-35% of the energy used by incandescent bulbs to provide the same amount of light. They also last about 10 times longer (7,000-24,000 hours).

The light produced by a fluorescent tube is caused by an electric current conducted through mercury and inert gases. Fluorescent lights require a ballast to regulate operating current and provide a high start-up voltage. Electronic ballasts outperform standard and improved electromagnetic ballasts by operating at a very high frequency that eliminates flicker and noise. Electronic ballasts also are more energy-efficient. Special ballasts are required for dimming (U.S. Department of Energy, 2012)

LED lighting

The light-emitting diode (LED) is one of todays most energy-efficient. Quality LED light bulbs last longer, are more durable, and offer comparable or better light quality than other types of lighting.

• Why are my lighting choices changing?

U.S. Department of Energy (2012) claims for many years, researchers have been working on new lighting options that produce the same light, with less energy. Many of those designs are now on the market. ENERGY STAR qualified CFLs, LEDs and halogen incandescent bulbs, all while reducing electricity costs.

• Do some bulbs provide better quality light than others?

Light Emitting Diodes (LEDs) use less energy, last longer, can turn on and off faster, and are much more durable. If you want to light up a room, an LED light would be more expensive and generate more heat than a fluorescent light of the same size (Green Answers, 2011)

• How much can I save?

The lighting at home is from 6 to 8% of the cost on your electric bill. You can reduce it by saving energy lights for example if you use this incandescents bulbs you can reduced a 25%, with CFL bulbs like 75% and LED bulbs from 75 to 90%.

In fact, youll save about $6 in energy cost each year if you replace one tradicional 100 W incandescente with an energy star CFI (U.S. Department of Energy, 2012).

• What is a lumen? How does it relate to watts?

Lumens measure how much light you are getting from a bulb. More lumens means it's a brighter light; fewer lumens means it's a dimmer light (U.S. Department of Energy, 2012).

The brightness, or lumen levels, of the lights in your home may vary widely, so here's a rule of thumb:

o To replace a 100 watt (W) incandescent bulb, look for a bulb that gives you about 1600 lumens. If you want something dimmer, go for less lumens; if you prefer brighter light, look for more lumens.
o Replace a 75W bulb with an energy-saving bulb that gives you about 1100 lumens
o Replace a 60W bulb with an energy-saving bulb that gives you about 800 lumens
o Replace a 40W bulb with an energy-saving bulb that gives you about 450 lumens.

If you want more information see the next video:

• What is Energy Star?

ENERGY STAR is the international symbol of premium energy efficiency. Products that display the ENERGY STAR symbol have been tested according to prescribed procedures and have been found to meet or exceed higher energy efficiency levels without compromising performance (Natural Resources Canada, 2011).

Green Answers. (2011). Why are light emitting diode lights better than other bulbs? Retrieved from

Natural Resources Canada. (2011, June 9). What is Energy Star? [Energy Star]. Retrieved from

U.S. Department of Energy. (2012, July 29). Incandescent Lighting. [U.S. Department of Energy ]. Retrieved from

U.S. Department of Energy. (2012, July 29). Fluorescent Lighting. [U.S. Department of Energy ]. Retrieved from

U.S. Department of Energy. (2012, August 9). Frequently Asked Questions: Lighting Choices to Save You Money . [U.S. Department of Energy ]. Retrieved from

U.S. Department of Energy. (2012, July 29). Lumens and the Lighting Facts Label [U.S. Department of Energy ]. Retrieved from