P4 SMD1921 Outdoor LED Module. The size of P4 outdoor led module is 256mm*128mm.
It is mainly used for Outdoor LED Screen in viewing distance larger than 4 m.
P4 is often used of the shop window and placed facing pedestrians on the street. Although in this circumstance, the LED Screen display will not be rained or watered, but the display needs to emit high brightness, so only the outdoor LED module can achieve the highlight effect.