... ",28",30",32",34",36",38",40" and so on can customized. GC306 3"GC804 8" (200mm digital ... 28",30",32",34",36",38",40" and so on can customized How to choose right?Viewing DistanceThe distance ... the maximum amount of sun from all sides. No other system on the market offers this unique, individual diode shading. ... s focus, you would see nothing but black. On the other hand, if you were to build a led sign ...