Whenever a large indoor space needs to be illuminated, high bay lighting is usually appropriate. Consider spaces like manufacturing facilities, gymnasiums, warehouses, large department stores, factories, and more; these facilities are typically vast and cover a lot of vertical as well as horizontal space. This requires powerful lighting to provide the appropriate foot-candle levels to adequately illuminate. High bay lighting fixtures typically hang from the ceiling via hooks, chains or pendants, or they may be fixed to the ceiling directly (similar to troffer lights).
Various industries and facilities require high bay lighting. Some of the most common are:
School and university gymnasiums
Municipal facilities like community centers or recreation centers
Commercial applications like department stores