This heater is used to keep coin boxes from freezing during the winter months so you or your employees don't need to constantly check them. Include with this assembly is a thermostat so a temperature setting can be selected and left to operate. It helps customers have a great experience since the functions won't freeze. A bracket is included to help you attach the heater to the inside of your coin box. Designed for compatibility with 20 and 30 watt electrical connections.