Provide your birdie friends with drinking water even in freezing winter months! 

• Safely maintains open water to 20° below zero Fahrenheit.
• Natural color and attractive rock-like design blends naturally with any birdbath - Even the 18" cord blends in with nearly every birdbath but unit  may be spray-painted any color to match your birdbath.
• Virtually indestructible - Solid aluminum housing keeps the unit from falling out of the birdbath.
• Durable enamel finish is easy to clean.
• Thermostatically controlled, using only 50 watts.
• Completely safe to handle and use - Won't burn or melt plastic birdbaths
• Will not calcify, rust or stain birdbaths
• Item Dimensions: 7"L  x 3" W  x 1" D
• UL Listed ~ 50 Watt