If you are looking for the highest quality popcorn machine in the market, you will find it in the Professional Series popcorn machine. The Professional Series 12oz popcorn machine operates on a 20 amp 120 Volt circuit. This machine is ideal to use in schools, gamerooms, or any environment that needs lots of popcorn. This popper will produce 221oz servings per hour. This full-feature popcorn machine uses a gas spring assisted kettle for easy unloading, four-switch operation, kettle "ready" lights and a Hard-coat anodized aluminum kettle for superior performance and ease of cleaning. The heated warming deck will keep popcorn warm and fresh for long periods of time. One serving will produce enough popped popcorn to fill approximately tewlve 1-oz bags.