GARDEN OUTDOOR YARD PATIO BIRDBATH Model: 05-742G $21 MATERIAL - The birdbath heater is constructed of casting aluminum with 18-inch PVC electric cord for ultimate efficiency and safety. DESIGN - Designed for standard size birdbaths, this outdoor bird bath de-icer is crafted in natural color and able to be sprayed and painted into any color as you desire. Durable enamel finish makes it easy to clean. FUNCTION - The submersible birdbath heater is thermostatically controlled to operate when necessary, automatically keeping water from freezing. Operate only when necessary. SAFETY ASSURED - The birdbath de-icer uses only 50-watt power, low wattage to ensure safety and comply with USA/CA electrical safety standards, tested and certified by MET Labs.