For the Modules, points to consider:

* Indoor LED modules and Outdoor LED modules :

Indoor LED Display Modules made with regular brightness LED, there are P1.0, P1.25, P1.56, P1.667, P1.875, P1.923, P2, P2.5, P3, P4, P5, P6 LED Display Screen Modules.

while Outdoor LED Display Modules made with high brightness LED, there are P3.0, P4, P5, P6，P6.7, P8, P10 LED Display Screen Modules.

* The Size of the LED Modules

You need to consider and well-known for the sizes of the LED display screen modules, to calculate the QTY. of LED display screen modules need for LED display screen / wall in different sizes.

And to know for a the same size LED display screen,  different Pixel Pitch LED modules used, the PRICES vary quite a lot.

Below is an example to show you. CLICK HERE TO KNOW WHY THERE ARE SO BIG DIFFERENCE.