Warming Shelf Overall Height 2 3/4 in Overall Width 24 in Overall Depth 20 in Wattage 350 W Voltage 120V AC Current 2.9 A Features Durable Rope-Style Heating Element for Even Heating Front and Back Heat Zones Smooth Top with Welded Corners Thermostatically Controlled Unit Minimum Operating Temperature 140 Degrees F Plug Type 5-15 Power Source Electric Standards cULus NSF Surface Material Stainless Steel