It is powered by the battery of the Truck car. · The parking air conditioner is a kind of in-car air conditioner. It refers to the equipment that uses the on-board battery DC power supply (12V) to make the air conditioner run continuously when parking and waiting and resting, and to adjust and control the temperature, humidity, flow rate and other parameters of the ambient air in the car, so as to fully meet the comfort cooling needs of the truck driver. · These DC 12V products are now widely used in the ventilation and air conditioning systems for the cabs in trucks, tractors, motorhomes, touring car and construction machinery. The DC Air Conditioner Kit is very easily connects to challenge confined space and extreme hot ambient! · 12V electric air conditioning system have multi installation ways to ensure it can be suitable for most vehicles in the market. It includes 1 rooftop mounted air conditioner for van, truck, commercial vehicles, special vehicle, trailer, earth-moving machine, motorhome, RV (recreational vehicle), and 2 back-wall mounted air conditioner for truck, tractor, trailer, heavy duty truck, light truck, truck cab, truck sleeper, sleeper cab. · This is the most popular truck parking air conditioner on the market. The truck air conditioner is divided into two types : Rooftop Air Conditioner/ split type model. Very easy to install. Optimize the outdoor unit fixing method, you can choose horizontal or vertical installation according to your needs. · 100% brand new and high quality, Durable. · High cooling capacity & reliable performance suitable for most place in the world. · Battery driven, save fuel consumption and save space with compact design. · Stream line design to apply all kinds of Van & Mini bus. · After strictly water pouring test, no water penetration. · Light and thin appearance, saving space. · Double insulation, noise reduction, more comfortable. Refrigerant:R134A 600g (Not include). Circulating air volume: 600m³/H. Outdoor unit size:660490210 (mm). Indoor unit size:450330160 (mm). Manual measurement, there is a certain error, for reference only. 1 x Air Conditioner Set. 1 x Product Manual.