Compact fluorescent light bulbs (CFLs) contain mercury. At the end of their life they should be recycled, rather than disposed of with other trash. See if your community accepts CFLs as part of municipal hazardous waste collections, or if local retailers have drop-off bins for spent CFLs. If not, use this CFL recycling kit from Veolia ES, an environmental services company that will process the fluorescent lamps properly.
Upon receipt assemble the box and insert the plastic liner. Fill the box with expired compact fluorescent light bulbs to be recycled. When the box is full complete the prepaid United States Postal Service return shipping label and ship the bulbs to Veolia ES for recycling. One RECYCLEPAK box is 6 inches square (6" x 6" x 6"). In EFI's own testing we have found one box will hold the following combinations:
8 to 12 mini CFLs (bulb under 4 inches long)
6 to 8 medium CFLs (bulb up to 5 inches long)
3 to 5 large CFLs (bulbs longer than 5 inches
5 15w small CFLs, 4 20w medium CFLs, and 1 large three-way CFL
5 15w small CFLs, 2 20w medium CFLs, and 1 large three-way CFL
6 15w small CFLs, 1 20w medium CFL, and 2 large three-way CFLs
3 15w small CFLs, 4 20w medium CFLs, and 1 large three-way CFL
The price includes the box, plastic liner, liner tie, instructions, and return shipping and processing costs.