The P4 outdoor surface mount full-color high-definition LED display screen adopts SMD2727 light beads, with a module size of 256 * 128mm, a waterproof standard box size of 768 * 768mm, a unit box resolution of 192 * 192 points, a horizontal and vertical viewing angle of 140 degrees, a refresh rate greater than 1920Hz, a gray level of 14 bits, a protection level of IP65, a viewing distance of 4-200 meters, high brightness, and clear viewing information under direct sunlight. The brightness can be automatically adjusted according to the surrounding environment, playing high-definition videos, long viewing distance, two-year warranty, and lifetime maintenance.