This brushed stainless steel tray is 21-inch by 14-inch and features wide cool-touch handles so it is easy to move and serve from. It features 400-watt of power for quick heat-up and recovery plus an adjustable thermostat and power indicator light to ensure food remains at the selected temperature. For best results, set warming tray to maximum heat setting to warm quickly. Then adjust thermostat to desired temperature. Serving temperature is from 155 degree fahrenheit (minimum) to 200 degree (maximum). The Waring Pro Warming tray is designed to keep food warm only and food place on the tray should be fully cooked and already hot.