Led moving display, with different colors or pixels.Outdoor use.with CE ... indoor use; f 5 or f 8 for window brightness.Display Color 1.Monochrome: Red, Yellow Green, Amber, Blue, Pure ... etc.Average LED lifetime 100,000 hoursPC Communication RS232, RS422, Email, Modem, GSM Modem or Ethernet network.Communication Distance Max. ... -RS422 convertor, Modem, GSM Modem, Ethernet adapter Led Moving Display