Patio Heaters descriptions We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Automatic Thermostat Ptc Heater With Stand Corrugated Strip, Small Space. Features & Benefits: 1. Security: PTC Products with Constant Fever, No Open Flame, Heat Conversion Rate, Subject to the Supply Voltage with Minimal Impact and Other Traditional Heating Elements Can Not Match Advantage, Used in Electric Appliances in More and More Popular in the R & D Engineers. 2. Energy Saving: PTC Product Has an Automatic Energy-saving Features, the Heater when the Ambient Temperature is Raised, the Power Will Be Gradually Reduced, Only 90% of Rated Power, 80%, or Less. 3. Long Life: when in Normal Use PTC Products is Not Damaged Because of Their Own Reasons, or Even Thousands of Times Repeatedly Switch Has No Effect on Its Performance, a Measure of Its Life is Its Degree of Aging. General Standards for Power Decay After 2000 Hours is Less Than 10%. Specifications: Rated Power: 50W Rated Voltage: 12V AC / DC (Either AC or DC is Available) Size: 9.3 * 31 Cm PTC Chips Temperature: 220 Degrees Celsius ( 10 Degrees Celsius) Heat Material: PTC Thermistor Heat Methods: Heat Radiation by Air Flow . Products number : SOMONO146343