P2.5 Indoor refers to an indoor LED display with a pixel pitch of 2.5 millimeters. A P2.5 indoor LED display is a high-definition LED display board with a pixel pitch of 2.5 mm, which is the distance between adjacent LED pixels. P2.5 indoor LED displays are known for their high-quality picture and color expression, and are often used in indoor meetings and shopping mall advertisements.

Full color indoor P2.5 LED screens with integrated 3in1 SMD full color LED block modules as unit is another deeper revolutionary development in the LED screens industry. It shows a super fine and high quality picture on the LED screens and has a much wider viewing angle than the full color dip lamps LED screens.

The 2.5mm 3in1 SMD has been the outmost smallest pitch of conventional LED lamp display.