Bayco SL-194 Replacement Fluorescent Head for Model 821 Durability and safety tested for the toughest situations Designed in the USA with quality materials Used in tactical, outdoor, Recreation levels Replacement Head for Barco 821 13-Watt Fluorescent Angle Work Light on 40-Foot Metal Reel with Grounded Receptacle Easy to Install Cool Running, 13-Watt Bulb Provides 10,000 Hours of Use Features Hands-Free Hooks Barco is the Established Leader in Next Generation Task Lighting System