The Worker Bays are ideal for general purpose lighting including warehouse facilities, assembly areas, gyms, hangars, transportation garages, loading and staging areas. Suitable for indoor applications ceiling height exceeds 15 feet. Features: Die-formed steel ballast housing with white finish; Wiring acces cover plate with additional 3/4 inch knockouts for thu-wire connectors, (thru-wire box included); Field-adjustable light distribution patterns; Constant wattage autotransformer (CWA) high power factor ballast or equivalent, capable of starting and operating at -30 degrees C minimum; Die-cast plate tapped 3/4 NPS accepts 3/4 inch pipe or 715NEW or 714S die cast hook; Removable steel wiring compartment door for quick and easy mounting, allowing for hands-free mounting; 40 degrees C rating.