These portable overhead lights have been engineered to meet the need for safe, temporary, economical lighting for a large area. Their versatility provides for the base unit and feed-through unit used to meet virtually any wide-area lighting requirement. Heavy-duty construction and high lumen output make these lights ideal for a broad range of applications including manufacturing plants, airline maintenance hangers, ship building, food processing plants, utilities, breweries, general maintenance, and construction plus many more. The 1100 Series uses standard fluorescent tubes while the 1200 Series uses long-life biaxial tubes for a smaller unit where space is a major concern.