Plusrite 4034 (CFQ26W/G24q/835) 26-watt compact fluorescent light bulbs are an energy efficient alternative to traditional incandescents with the same light output. These bulbs last up to 10,000 life hours and use 75 percent less energy than an equivalent incandescent light bulb. These 4-pin, G24q-3 base CFLs are used 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.