This energy efficient heated saucer uses only 200 watts of power. At just 1.75 inches tall, its low profile minimizes wind resistance. Thermostatically controlled to operate only when necessary, the Heated Pond Saucer maintains a vent hole in the ice to release harmful gasses. A fish and pond friendly product. Versatile enough to work in most ponds. Comes equipped with a fully grounded 10 foot power supply cord.