... panel is 25years,another parts is from 6-15years.Foshan Tanfon Energy Technology Co., ... Wide range of DC input voltageReliable thunderstorm& surge protectionMultiple PV strings inputs Service time : ... Also can take the load directlyProtective Functions: Protection Against Over load, Short-Circuit, Over ... ,(one red and one black)International standard, with specification suitable for solar system,100mOn ...