DESC: Power-saving two-circle heat technology allows for 5 1/2" diameter - 600 watt heating zone or an extra large 8 1/4" diameter - 1,500 watt heating zone. You can match heat zone to pan size ,Signal light shows power on ,Fast heat up and heat off ,Smooth glass ceramic cooking surface for easy clean-up ,Low profile contemporary design ,Easy to clean stainless steel housing ,Infinite heat control