26W, 4100K, Compact Fluorescent Quad Tube 4-Pin G24d3 Base - Topaz's line of Compact Fluorescent Lamps are the next generation replacement for traditional incandescent lamps and are ideal for multiple residential and commercial applications. Topaz's Compact Fluorescent Lamps are crafted in shapes to suit every need- from mini spiral to globe, candle shape to 3-way. The Topaz line provides long life, is energy efficient, eco-friendly and offers true energy savings over traditional incandescent lamps.