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Switch Things Up: Stylish, efficient lighting for your home
November, 2017

Dear Pat:

After twenty years with the same lighting in our home, it’s time for a change. I’ve done a little research and there are so many types of light fixtures and bulbs it’s making my head spin! How

can I select something practical, affordable and efficient? – Heidi

 

Dear Heidi

Your question is an excellent one, because we often take lighting for granted. We choose our fixtures and bulbs without thinking through some of the important issues, such as

  • the specific lighting needs of the room

  • how the fixtures work together; and

  • how they can save us money on our energy bill.

 

Saving energy begins with choosing the correct bulb. Efficiency standards for incandescent bulbs between 40 and 100 watts, which came into effect in 2012, led to the halogen bulb (also known as energy-efficient incandescent). These bulbs are at least 25% more efficient than the old incandescents1. The other two common types of bulbs for the household are compact fluorescent lamps (CFL) and light-emitting diodes (LED).

 

Energystar.gov estimates that you can save $75 a year by replacing the five most-used incandescent bulbs or light fixtures with Energy Star-certified LED or CFL lighting. 2  Of the three types, LEDs tend to save more money over the long run, and LED bulb prices have come down in recent years3. A downside of CFLs is that they contain a small amount of toxic mercury that can be released into your home if one breaks.

 

When you’re considering which type of bulb to buy, consider both watts and lumens. Watts indicate how much energy (and therefore, money) is used to produce light. Lumens indicate how much light the bulb produces. A handy comparison is that an 800-lumen bulb is about equal to the amount of light from a traditional 60-watt incandescent bulb.4 Lumennow.org gives an excellent guide to understanding bulbs.

 

Bulbs also give off different colors of light, known as color temperature. If a bulb burns out—or in the case of an LED, as it dims over time—it can be challenging to find a replacement that matches other lights in the room. If that variation bothers you, you may want to purchase and install bulbs of the same brand and wattage for the entire room or area at the same time5.

 

Installing dimmers instead of on/off light switches is a good way to save energy while giving you greater control of the amount of light in the room. Not all bulbs are dimmable, so check the label on the bulb to be sure it will work with a dimmer.  It’s worth considering if you have the right number and the right location for light switches.  We recommend hiring a licensed electrician if you decide to install new lighting and switches.

 

Now that we’ve talked about bulbs, let’s move on to fixtures. Different types of fixtures have different functions. Ambient lights such as sconces and glass-covered fixtures provide gentler overall lighting, while directional fixtures such as pendants, desk lamps and track lighting provide task lighting that focuses on areas where work is done.  Not all bulbs can go into an enclosed fixture, or work outdoors.

 

As you choose a light fixture, make sure it can provide the correct level of brightness, with an appropriate size and number of bulbs. It can be disappointing to install a ceiling light with the style you love and realize it doesn’t put out enough light for the room; or the opposite, that your room is flooded with too much light, which also wastes energy and money.  You might be able to use an extension cord and a clamp light to test different bulb wattages.  It’s not a good idea to mix bulb types in a fixture, as the excess heat from an incandescent or a halogen light can diminish the performance of an LED. 6

 

The Lighting Research Center website (http://www.lrc.rpi.edu/) has a resource page with many sample lighting layouts for every room in the home, which you can find by entering the phrase “Lighting patterns for homes” in their website’s search engine. Home décor sites like Better Homes and Gardens, Real Simple, HGTV and similar sites also give excellent lighting explanation, plans and ideas.

 

It’s always a good idea to check with your co-op, they may offer energy audits or lighting product rebates.

With a little planning, you can have the fashionable, well-lit and energy-efficient home you’ll be happy with for years to come!

 

This column was co-written by Pat Keegan and Brad Thiessen of Collaborative Efficiency.

For more information on lighting, please visit the November 2017 more information page.

FOOTNOTES

1source: https://www.epa.gov/cfl/how-energy-independence-and-security-act-2007-affects-light-bulbs

2source: https://energy.gov/energysaver/lighting-choices-save-you-money

3source: https://energy.gov/energysaver/lighting-choices-save-you-money

4source: https://www.consumerreports.org/cro/lightbulbs/buying-guide.htm

5source: https://www.energystar.gov/index.cfm?c=fixture_guide.pr_fixtures_guide_lightquality

6source: https://www.consumerreports.org/cro/news/2015/01/how-to-get-your-money-s-worth-when-buying-an-led/index.htm

Using the same type and age of bulb in each fixture ensures consistent color and extends bulb life. Photo Credit: Brad Thiessen.