The Model C-500 is a very powerful de-icer for its size. Its 500 watts of power dictates it can be used in any application where the quantity of water does not exceed 50 gallons. It is a perfect product for mid-sized livestock watering tanks. Its small size and high watt out-put makes it the ultimate utility de-icer for any job where a full sized de-icer is too much. Approved by Underwriters Laboratory and carries a one-year manufacturer warranty.