Your approximate savings are:

Estimated energy savings per year   kilowatt hours
Estimated savings per year $

Update any fields to evaluate another scenario.
Light fixture type  
Standard light fixture wattage watts
ENERGY STAR® light fixture wattage watts
Number of light fixtures fixtures
Hours of use per day hours
Electricity cost . cents per KWH

Calculator provided courtesy of the sponsoring organizations of
Northeast Energy Efficiency Partnerships, Inc. (NEEP).

 

Savings are for wattages shown.  Your actual savings will vary based on
the wattages you purchase.  When comparing incandescent or halogen
bulbs to ENERGY STAR qualified bulbs or fixtures, compare the light
output, or lumens, and not Watts. Watts equal the energy used, not the
amount of light.