Bayco SL-104PDQ Replacement 13-Watt Fluorescent Bulb Durability and safety tested for the toughest situations Designed in the USA with quality materials Used in tactical, outdoor, Recreation levels 13-Watt Fluorescent Bulb Replacement Bulb for Models: SL-908, SL-926, and SL-975 Also Fits Models: SL-976 and SL-8908 No Flicker Start Bayco Provides High Quality, Rugged Designs that Stand up to the Rigors of Professional Use