I am posting this link about compact fluorescent lamp (CFL)
Compact fluorescent lamp
try switching some of the bulbs in your house to soft
white or warm white CFL Modern CFLs typically have a life
span of between 6,000 and 15,000 hours, whereas incandescent
lamps are usually manufactured to have a life span of 750
hours or 1000 hours For a given light output, CFLs use
between one-fifth and one-quarter of the power of an
equivalent incandescent lamp.
the result will be savings in the bills for you and
In countries where electricity is largely produced
from burning fossil fuels, the savings reduces
emissions of greenhouse gases and other pollutants.