Features 1. Smart Control: Features a time setting design, allowing the controller switch knob to set precise timing for starting and stopping the heater. 2. Reliable Operation: Can be used with a heater switch and remote control for convenient manual operation. 3. Wide Compatibility: Suitable for various applications in cars, trucks, vehicles, ships, and more, helping create a comfortable environment. 4. Durable Material: Made primarily from high-quality ABS material, the heater control switch is resistant to malfunctions and built to last. 5. Easy Installation: Lightweight and compact with a simple structure, the heater knob switch is easy to install. Specification Item Type: Car Heater Controller Material: Plastic Switch Size: Approx. 66 x 52 x 23mm / 2.6 x 2.05 x 0.91in Cable Length: Approx. 250mm / 9.84in Port: 3 pins Power Supply: DC 12V 24V Accessories: Universal Package List 1 x Car Heater Controller