[Automatic Birdbath Water Heater]AC 120V 60Hz 60W, the outdoor bird bath de-icer thermostatically controlled to operate only when necessary, prevents water from freezing due to F or colder weather, your cute bird more care [Heavy Duty and Thermostatic]aluminum base surface and high-density aluminum liners, with highly heat and durable for maximum usage and security, added an additional thermostat, which working continuously in the circuit, when the heating base temperature exceeds 95 degrees Fahrenheit (35 degrees Celsius), the power supply will be automatically disconnected to safety [Safe for Bird]built-in heating wire, the heated base has a power cord which and quality, so birds and squirrels 't hurt if they at the electric cord, and it keeps curious birds safe, then enjoy warm water in a freeze and snow-covered winter [Plug and Play]the birdbath heater has no spare parts to replace, simply plug into a power source and your birds or farm animals will enjoy the gentle warmth water within minutes [Powerful Application]suitable for small animals, the low wattage heating base is perfect for outdoor and freezing winter temperatures, and provides gentle heat water without scalding your bird, or animal's mouth Product name: bird bath heater Wire length: 1m power: 15W Voltage: 5V Constant temperature: 35 Product size: 12.7 x 8.6 x 3cm color:White Material:plastic Package Contents: 1 x heater(USB) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.