



Savings will vary depending on type of lamp (i.e. CFL, LED), cost of electricity, bulb lifespan and hours of operation. ENERGY STAR® qualified lightbulbs pay for themselves in about six months. Then they begin paying you back. Change one bulb, and save about $80 over the lifetime of the bulb. Change five bulbs, and save about $400 over the lifetime of the bulbs.If every American home replaced just one lightbulb with an ENERGY STAR® qualified bulb, we would save enough energy to light more than 3.5 million homes for a year and prevent greenhouse gases equivalent to the emissions of more than 640,000 vehicles.Source: https://www.energystar.gov/products/ask-the-expert/lighting-made-easy