CLT LED Display board 1)Pixel pitch:4mm High resolution 2)CE,ROHS,CCC,UL,ROHS 3)12d delviery/2-5y warrantee 4)Good quality P4 SMD 3IN1 Indoor LED display board with gray mask1)Pixel pitch:4mm High resolution2)Certificate:CE,ROHS,CCC,3)Delivery time:12 days4)Good effect with the gary mask5)Our updated new product Ph4mm 3-in-1 SMD indoor full-color LED display ItemParameter PixelPhysical pixel ...