Farm Innovators Model C-50 Premium Cast Aluminum Birdbath De-Icer, 150-Watt Premium Birdbath De-Icer. Heaters, De-Icers And Floats Manufacturer: FARM INNOVATORS-WLDBRD Manufacturer part number: C-50 Farm Innovators' aluminum birdbath de-icer is a state-of-the-art electric birdbath de-icer Constructed of patented cast aluminum for ultimate efficiency and safety Thermostatically controlled to operate only when necessary Safe in all birdbaths Uses 150-watt power