250 Watt Birdbath Heater and De-Icer

250 Watt, thermostatically-controlled, bird bath heater and de-icer.  Turns on only in cold water and maintains open water, even in sub-zero temperatures. Keeps entire bird bath ice free all winter long. Energy efficient - Large heating-surface area runs cooler than conventional de-icers. Durable aluminum base and multiple thermostat control. 3 year warranty. Low-profile, sturdy aluminum base incorporating multiple thermostats for efficient, accurate temperature control. 10 foot cord with abrasion protector. Operates over a narrow heating range. 250 watts. Made in the USA.