The Sharp model R-21LVF microwave oven, made for commercial applications, is categorized as a medium-duty microwave oven featuring 1000 Watts of power with 1.0 cubic feet internal capacity, which can hold a 1/2 size food pan loaded in either direction. It features advanced digital controls and a programmable keypad with ten memory pre-sets. The R-21LVF can be operated in a one-second increment timing mode, has built-in safeguards preventing unauthorized changes, and an Express Defrost mode that automatically divides total defrosting time into three stages with three power levels. 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.