On January 1 California became the first state to ban the sale of incandescent light bulbs, which are being replaced with LEDs that use 80 percent less energy. There are still an estimated 250 million incandescent bulbs in use in California. Replacing them will save $1 billion in electricity costs each year, according to the Natural Resources Defense Council.
You can discard old incandescents in your black “landfill” bin, but compact fluorescent light bulbs (CFLs) as well as other fluorescent lights contain mercury and need to be treated as hazardous waste. Here are locations in San Mateo County where you can recycle CFLs and fluorescent lights.