How long do standard incandescent bulbs in street lights last?
The stand-alone displays function as a screen connected to a VCR that shows everything has been pre-recorded on the videotape. Therefore once the sequence of images to be visualized has been memorized, there is no need for a Control PC to keep functioning. For this reason stand-alone displays are not able to forecast live videos which is a feature of the Modular Graphic Displays.