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.

The type of model the bulb should be


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

The minmum lifetime of the bulb, measured in hours


Specific applications which may be applied to the bulb


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


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.



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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.