This document provides specifications for the RM851 Series high abuse recessed fixture for grid ceilings. It can be used with compact fluorescent or induction lamps. The fixture has a heavy gauge steel or aluminum housing, specular aluminum reflector, and prismatic tempered glass lens. It is UL listed and suitable for damp locations. Induction lamp options provide long life, energy efficiency, and instant on/off capabilities making it suitable for applications like parking garages, gymnasiums, and industrial facilities.