The Sharp model R-21LCFS microwave oven, made for commercial applications, is categorized as a medium-duty microwave oven featuring 1000 Watts of power and a 1.0 cubic feet internal capacity that can hold a 1/2 size food pan loaded in either direction. The exterior cabinet has a stainless steel high-polished finish on the door, top, and sides, along with stainless steel back and bottom. The interior cabinet of the R-21LCFS microwave oven is stainless steel with a highly polished ceramic bottom shelf. The Sharp R-21LCFS commercial microwave oven controls feature a simple to use lighted Dial with a built-in 6-minute electronic timer function marked in 10, 15, and 30-second increments. And there is a handy reference guide showing recommended heating times for various popular food items. Rated at 120 VAC, 14 amps, 60 Hz, 1-Phase, 1.6 KW includes a line cord with a NEMA 5-15 R molded three-prong plug, this microwave oven is UL listed for electrical safety and NSF certified for food service.