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A GUIDE TO COMPACT
FLUORESCENT LIGHT (CFL) BULBS
The average Saskatchewan home has about 40 light bulbs, which account for about 21% of household electricity use every month.
Switching to energy efficient compact fluorescent lights is one of the brightest investments you can make.
CFLs use at least 66% less electricity and last up to 8 times longer than standard incandescent bulbs. That means each bulb saves about $40 over its lifetime. If you replaced 40 bulbs in your house, you would save about $1600!
If every household in our province replaced just one standard 60-watt incandescent bulb with the equivalent 13-watt CFL, we’d save enough electricity to power over 5,000 homes for an entire year. This would cut greenhouse gas emissions by over 30,000 tonnes in one year alone!
To start, use CFLs in the areas where lights are left on for long durations of time. Begin by purchasing one CFL to check for preferred light output and colour.
CFLs are available in a range of colour hues. Soft white or warm light have a yellowish hue and are best for indoor lighting at low lighting situations. They will enhance your home’s warm colours (red, orange, yellow). Cool light have a whitish hue and are best for reading and other task lighting. Daylight have a bluish hue and are best in bright lighting situations.
Look for the ENERGY STAR symbolThis is your assurance that the bulb meets quality standards - including long life, brightness and electricity savings - and carries a minimum warranty of 3 to 7 years against all defects. If the bulb fails within the warranty period, return it to our retailer or bulb manufacturer.
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Table/Floor Lamp |
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Pendant Fixture |
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Ceiling Fixture |
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Ceiling Fan |
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Wall Sconce |
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Recessed Can |
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Track Lighting |
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Outdoor Covered |
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Outdoor Exposed |
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CFLs are now available for almost all types of fixtures: enclosed, dimmable and tri-light. Always check the package to make sure you choose the right bulb. The life of a CFL can be drastically reduced if the bulb is not meant for the selected fixture.
Different fixtures require different types of bulbs. Using the chart find your fixture and see which CFL will work best for you.
Check the package for wattage and lumens to make sure your CFLs will be bright enough. Remember: the higher the lumens, the brighter the light.
| Standard incandescent bulb (watts) | CFL bulbs (approximate equivalent watts) | Light output (approximate lumens) |
| 40 | 11 | 450-500 |
| 60 | 13-15 | 550-900 |
| 100 | 23-29 | 1,600-1,800 |
Switching to energy-efficient CFLs is one of the smartest investments you can make.
Want to learn more about CFLs? Check out these helpful links.
Because CFLs contain mercury, if a CFL breaks, specific steps must be taken to safely dispose of the bulb:
CFLs can be taken to Home Depot and RONA locations across Canada and placed in the store's recycling units. These units are monitored and, when full, the bulbs are responsibly recycled.
Check your local stores for a variety of shapes and sizes to fit your fixtures. Remember to read the packaging to ensure you’ve selected the right bulb for each fixture and location.
The price of CFLs has dropped dramatically since they first appeared on the market. Each bulb could save you about $40 over its lifetime. If the average home has 40 bulbs, that’s $1,600 in your pocket!
ENERGY STAR qualified CFLs are designed to be instant on. Some older products may hesitate slightly before lighting up or may take longer to come to full brightness.
Yes. There are specific CFLs designed for outdoor use; check the package.
Yes, but indoor CFLs being used outdoors should be protected from rain, snow and hail. Most CFLs have been designed for a minimum optimal operating temperature of –18C but will operate at lower temperatures. When temperatures drop below this point, the life of the bulb may be affected – it may also take longer for the bulb to reach full brightness.
CFLs can be used in any fixture, but because they last up to 10 times longer, CFLs can be excellent choices for hard to reach light fixtures – especially ones that are used for long durations of time.
Yes, but remember that frequent switching on and off can shorten the life of CFLs.
CFLs can be used in any fixture or location, as long as you choose the right CFL for the job. Remember – do not use CFLs in totally enclosed fixtures, electronic timers or other control devices unless they are designed for this usage.
The average CFL contains 5 milligrams of mercury, less than is in a watch battery, but no mercury is released when the bulb is intact or in use. Federal and provincial regulators consider the mercury in CFLs to pose no health threats to consumers during use, because the mercury is in a sealed unit.
CFLs are not a fire hazard. Using CFLs improperly can make the bulbs too hot, causing the bulbs to burn out early. In the worst-case scenario, CFLs used improperly may smoke, change colours and char around the base.
Check the packaging to make sure your CFLs are appropriate for your fixtures. For the safest CFLs, choose ones that are certified by the Canadian Standards Association (CSA) or Underwriters’ Laboratories (UL).
To prevent the bulb from breaking, always screw it in by its base rather than the glass.
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