General description This Car Flat Heater is designed for quick and efficient heating in your vehicle. With a high-quality PTC heating element, it provides fast heating in just a few seconds, ensuring a comfortable environment in your car, truck, or van. The adjustable air outlet allows you to direct the warm air where you need it most, while the rotary control knobs enable easy switching between heating and cooling modes. Technical specifications Heating method: PTC (Positive Temperature Coefficient) Heating time: 3 seconds Power source: Plug-in cigarette lighter Line length: 3.9 Ft / 1.2 M Voltage: 24V Other information Built-in multiple protection functions: overcurrent, overvoltage, overheat, short circuit, and overpower circuit for stable current output.