P stands for pitch, it means neighboring two pixels central distance. P2 means two pixels distance is 2mm, P3 means pixel pitch is 3mm.

Their main difference is resolution and viewing distance. The number after P is smaller, its resolution is higher, and best viewing distance is shorter. Of course, their brightness, consumption etc are also different.

Refresh rate refers to how many times per second the display is able to draw a new image. The lower the refresh rate, the more flickering the image. If need to often take photos or videos, such as live streaming, stage, studio, theater, LED display screen refresh rate should be at least 3840Hz. While for outdoor advertising use, refresh rate over than 1920Hz will be okay.

You should tell us your installation environment (indoor/outdoor), application scenarios(advertising/event/club/floor/ceiling etc), size, viewing distance and budget if possible. If have special request, please tell our sales to make best solution.

Outdoor LED display is waterproof and has high brightness, it can be used in rainy days and can be seen clearly under sunlight. Outdoor LED display also can be used indoor, need to reduce brightness. While indoor LED display can used for only indoor or sunny day morning or night(outdoor).

We can customized backup power supply and receiver card for LED display, so will not have signal and power transmission problem.