... , or White etc.Average LED lifetime 100,000 hoursPC Communication RS232, RS422, Email, Modem, GSM Modem or Ethernet network.Communication Distance Max.15meters for ... % RHPower Input 100-240VAC , 60Hz/50HzMemory Retention One yearHousing Material Black Powder Coated AluminumOptional Fittings RS232-RS422 convertor, Modem, GSM Modem, Ethernet adapter Led ...