TCP Standard Base (E26 Medium)120 Volt Dimmable Cold Cathode Aline Compact Fluorescent Lamp features unique soft strike low volt starting method that extends lamp life 25 percent, special phosphor fade resistant coating precedure which provides excellent color consistency, suitability for indoor and outdoor use and is excellent for rapid cycling applications such as signs. Other applications include emergency lights, accent lighting, decorative, amusement parks, soffits, rooflines and any location where rapid flashing is required.