X Fan Heater with Wire Specifications: Mounting Hole Size: 4mm Heating Material: PTC Thermistor Input Voltage: 12V DC Power: 100W Lead Wire: High Temperature Wire Heating Method: Heat Dissipation by Airflow Features: - Safe, Surface Insulated. - Fast heating and long service life. - Self-controlled temperature. - Small voice. - PTC insulated corrugated heating elements are dynamically heated and designed to heat moving air. - The large surface area of the aluminum fins ensures uniform heat transfer and regulates air volume flow. Purpose: 1. This PTC element is used to heat air or solids. 2.PTC material has the characteristics of constant surface temperature. Note: The power is a reference value. The better the heat dissipation, the greater the power. This model can be used without additional cooling. Purpose: Main purpose: Air heating, oven, shoe dryer, dryer, dehumidifier, heater, dryer and other closed space air convection heating