Features 1. Efficient heating: PTC insulated ceramic air heater is designed with high-quality PTC ceramic heating elements and aluminum tubes to ensure low thermal resistance and excellent heat transfer efficiency. You can experience fast and efficient heating from air conditioners or air curtain machines. 2. Automatic thermostat: PTC electric heaters are equipped with automatic thermostat control, providing you with consistent and comfortable warmth while saving energy. Say goodbye to constantly adjusting temperature settings and enjoy a worry-free heating experience. 3. Enhanced Safety: PTC ceramic air heaters are designed with safety in mind. The insulated PTC heating element ensures high safety and surface insulation, preventing any potential hazards. Feel free to use our heater around children and pets without worry. 4. Easy to install: PTC insulated ceramic air heater has convenient mounting holes for quick and easy installation. Just follow the instructions provided and you'll be up and running in no time. Experience a hassle-free setup and start enjoying the warmth immediately. 5. Durable and reliable: We use high-temperature-resistant wires as the material of the heater to ensure long-lasting durability and safe operation. Rest assured, our PTC insulated ceramic air heaters will provide reliable, efficient heating for years to come. Features: Adopts of PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency This product is a electric heater with automatic constant temperature and energy saving This PTC ceramic air heater has the characteristic of high security, and surface insulation. With mounting hole, easy installation The material adopts high temperature resistance wire, safe for use Application: air conditioner, electric heater, instrument, general appliance, air curtain machine, humidifier Made of high quality material, with long serving life Specifications: Heat material: PTC Voltage: 220V Power: 1000W Hole pitch: 150 x 68mm / 5.91 x 2.68in Installation hole: 8*4mm Size: 17 x 7.8cm / 6.70 x 3.07in(with ripple length of 126mm) Weight: 294g Package included: 1 x Ceramic Air Heater Note:  No need to distinguish "Positive pole"and "negative pole Package List