... have our engineering department which is responsible for the projects installation instructions, if you required, they can go to you to instruct ... price ratio 3, Products series we offer(1)Outdoor fix installation led screen:P10,P12,P14,P16,P20,P25 etc.(2 ... P10,P12,P14,P16,P20,P25 etc. (3)Indoor fix installation led screen:P6,P7.62,P8,P10 etc(4)Indoor ...