1Thermostatically Controlled: High thermal conductivity and durability. An additional thermostat is added. When the temperature of the heating base exceeds 35 , the power supply will be automatically disconnected to ensure safety. 2Anti Icing: Bird bath thermostatically controlled water heater that prevents water from freezing when necessary, providing 35 warm water and care for birds and other animals in cold weather. 3Safe Protection: Built in electric wire, and the heating base is equipped with a power cord to prevent birds from being injured when pecking the wires. 4Safe and Continuous Heating: It is suitable for small animals. The low wattage heating base is very suitable for outdoor and cold winter temperatures. It also provides continuous mild hot water without scalding your birds or animals' mouths. 5Easy to Use: There is no need to replace the spare parts of the bird bath heater, just plug in the power supply, and your birds or farm animals will enjoy warm water in a few minutes. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.