CFL 2-pin preheat replacement light bulbs are an energy efficient alternative to traditional incandescents with the same light output. These bulbs last up to 10 times longer and use 75% less energy than an equivalent incandescent light bulb. To help you find the right bulb for the right application, see Westinghouse full offering of CFL 2-pin replacement light bulbs available in a variety of wattages and colors. These 2-pin replacement CFLs are for general illumination applications with fixtures that have the correct designated ballasts--everything from recessed or down lights to wall sconces and outdoor lights. These light bulbs contain mercury. Dispose of according to local, state or federal laws. Product reference number 37375.