PTC Insulative Corrugated Heater (PTC Air Heater Insulator, PTC Heater for Warm Air Conditioner) is a high-power, non-surface-electrified PTC heater designed with airflow cooling. PTC elements are securely mounted inside aluminum tubes and remain electrically insulated from the tube. This PTC component is intended for heating air or solid materials. The PTC material features a self-regulating characteristic that maintains a consistent surface temperature. Advantages: Safe operation, rapid heating, long service life, automatic temperature control, and low operational noise. Applications: Suitable for use in equipment, electric heaters, general electric appliances, and air curtain machines. Heater Type: Fan Heater Installation: Portable, Freestanding Mounting Hole Size: φ4mm Heating Method: Heat transfer via airflow Lead Wire: High-temperature resistant wire Lead Wire Length: 200mm Bare Wire Length: 10mm Note: Power rating is a reference value. Actual power output may vary depending on heat dissipation conditions. Power may vary by ±20% under different operating environments. Power: 70W Color: Black Material: Plastic Dimensions: 90 x 60 x 42mm Package Includes: 1 x PTC Insulative Corrugated Heater The package includes only the items listed above; other accessories are not included. Note: Lighting conditions and display settings may cause slight variations in the color shown in images compared to the actual product. Measurement tolerance allowed: ±1–3cm.