General description The CSPARKV 2Pcs AC Air Conditioning Rotary Knob is a universal replacement switch designed for controlling the air conditioning fan in various vehicles. Made from high-quality ABS and metal materials, this switch is wear-resistant, sturdy, and durable. It features a 3-speed setting with off, low, medium, and high positions for convenient operation. Technical specifications Working voltage: 12V Rated working current: 25A Service life: 10,000 cycles Working temperature: -20°C to 60°C Working relative humidity: 95% Compatibility and accessories Compatible with cars, agricultural vehicles, trucks, and engineering vehicles Installation Easy to install; can directly replace old or broken rotary air conditioning switches Usage Allows for easy control of air conditioning fan speed in vehicles