Of course, there is also an air box, mainly because the Led display screen size is different, so the box size is also different. Generally speaking, the equipment of led display screen is about 50 inches, or 50 centimeters in popular parlance. An LED air box can hold 5 or 6 LED display screens, and the rental price of P3 is above 300 yuan/m2, which may fluctuate according to the economic expansion in 20 17 years.