... reliability. 4) Service advantage: Better service at same situation, better cooperation at same service! P25 Outdoor Flexible LED Display, LED screen, LED board Function ... , HDMI. 2) 8 bits controller: 4096 grade grey control system and the color is over 16.7 millions, and the ... brightness, contrast, saturation, chroma can be adjusted by manual and sensor, whose scope is 256 grade. 3) Show all kinds ...