The Nelson Blue Devil Bird Bath Heater 30204 is a 200w, 120V heated bird bath accessory designed to keep your feathered friends warm during the colder months. The blue color and bird theme add a touch of charm to your outdoor space. With no assembly required, this United States-made bird bath heater is easy to use and maintain, weighing only 13 oz. Perfect for keeping your birds comfortable and happy in your yard or garden.