PC-DVR500VA PC-DVR1000VA PC-DVR1500VA PC-DVR2000VA PC-DVR3000VA PC-DVR5000VA PC-DVR8000VA PC-DVR10000VA PC-DVR12000VA PC-DVR15000VA 1.Relay control voltage stabilizer 2.Input voltage 140-270V,105-270V,90-270V,80V-270V 3.LED Digital display 4.Low voltage protection (ouput voltage <185V+/-5V), Over voltage protection (output voltage >245v+/-5v),over loading >110%,over heating >100℃