... message panel Energy-saving, environmental protection, durable factory supply have stock now LED Single color message panelSpecification:Piexl composing; 1RBrightness(cd ... -250VAC/90-130VAC,50-60HzInput invotage; 5VControl system; Asynch ControlWorking life; >50,000 HoursOperating System; Win98, win2000, winXP, etcProtection Level; IP65Control Software; Sunrise software