API 650 Deck Mounted Heated Bird Bath with Outdoor Cord Connector A fantastic, year round bird bath for your deck A generous, 18.5 diameter basin and an ideal 2" depth Fully tested in sub-zero conditions, this basin will not crack in the winter cold Heater uses 150 Watts of thermostatically controlled power Power the bath safely with the included Farm Innovators Watertight Cord Connector