Westinghouse TTT 26 Watt Warm White (2700K) GX24q-3 Base CFL Pin-Based Light Bulb 3704500CFL 4-pin replacement light bulbs are an energy efficient alternative to traditional incandescents. These bulbs last up to 10 times longer and use 75% less energy than an equivalent incandescent light bulb with the same light output. To help you find the right bulb for the right application, see Westinghouse’s full offering of CFL 4-pin replacement light bulbs available in variety of shapes, wattages and colors. These 4-pin replacement CFLs are for general illumination applications with fixtures that have electronic and dimming 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.