Cfls use mercury to cause a phosphor coating on the inside of the bulb of fluoresce thereby.
Most energy efficient light bulbs 2016.
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You can determine the efficiency of light bulbs by comparing the amount of light produced to the amount of energy consumed.
In the 2015 recs which was administered from august 2015 to april 2016 86 of households reported using at least one cfl or led bulb.
Nationwide 18 of households reported that they had no incandescent bulbs in their homes.
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The winner will be the fixture that emits the most light with the least amount of energy consumed at the best price for your budget.
The most energy efficient light bulbs are compact fluorescent light bulbs or cfls and led bulbs.
Halogen incandescent light bulbs.
In 2009 58 of all households used at least one energy efficient bulb indoors.
Halogen incandescent light bulbs contain a small capsule inside of their bulbs that hold gas around a filament which increases their efficiency.
The following are some of the most energy efficient light bulbs on the market that you should consider using.