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Household CFL's

Compact Fluorescent Light bulbs are a great way to light your house while using less electric power. They also last longer than conventional light bulbs.
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The type of model the bulb should be

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To replace an incandescent bulb is to compare the light emitted, or lumen output, of the products

Incandescent Wattage, Equivalent Qualified CFL Lumen Output (lumens):

  •          40W Minimum lumen output: 450
  •          60W Minimum lumen output: 800
  •          75W Minimum lumen output: 1100
  •          100W Minimum lumen output: 1600
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The minmum lifetime of the bulb, measured in hours

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Specific applications which may be applied to the bulb

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The color correlated temperature of the light: 

Kelvin Temperature Lighting Applications Light Description

•               2500 – 2700K Homes Warm White

•               2700 – 3000K Homes, Restaurants Soft White

•               3000 – 3500K Homes, Restaurants, Public Reception Areas White

•               3500 – 4100K Homes, Libraries, Public Areas, Offices Cool White

•               4100 – 5000K Homes, Offices, Classrooms, Retailers Cool White

•               5000 – 6500K Medical Facilities, Jewelers Daylight

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How do CFLs work?

CFLs produce light differently than incandescent bulbs. In an incandescent, electric current runs through a wire filament and heats the filament until it starts to glow. In a CFL, an electric current is driven through a tube containing argon and a small amount of mecury vapor. This generates invisible UV light that excites a fluorescent coating on the inside of the tube, which then emits visable light. 

CFLs need a little more energy when they are first turned on, but once the electricity starts moving, use about 75 percent less energy than incandescent bulbs. A CFL’s ballast helps "kick start" the CFL and then regulates the current once the electricity starts flowing.

This entire process typically takes 30 seconds to 3 minutes to complete, which is why CFLs take longer than other lights to become fully lit. CFLs with decorative covers like globe or reflector shapes have a unique design challenge that results in the tradeoff of a slower warm up time, which is why these CFLs take longer than bare spirals to reach full brightness.

Older CFLs used large and heavy magnetic ballasts that caused a buzzing noise in some bulbs. Most CFLs today — and all ENERGY STAR qualified CFLs — use electronic ballasts, which do not buzz or hum.

(Source: http://www.energystar.gov/index.cfm?c=cfls.pr_cfls_about) 

 

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