Feit Electric Fluorescent Starters work with fluorescent lamps to help ignition. FS22/10 starters are UL listed and made from a durable plastic housing. Designed to work with F22 to F25 fluorescent lamps, these starters have built-in condensers, for more efficient energy use. When fluorescents start to flicker or burn out entirely, replacing the starter can return them to working condition. Get more life from your fluorescent lights by replacing burned-out starters with a high-quality replacement.