Bayco SL-202 Replacement Tube Assembly Durability and safety tested for the toughest situations Designed in the USA with quality materials Used in tactical, outdoor, Recreation levels Replacement Tube Assembly for Fluorescent Models: 507, 512, 513, 520, 550, 651, 825, 826, 907, 920C, 935, 936 and 8907 Easy to Install Made of High-Impact Resistant Material Ideal for Industrial Personnel and Contractors Barco is the Established Leader in Next Generation Task Lighting System