... & ISO 90014) OEM 1) Non-contact voltage regulator2) CPU intelligent control,digital circusits,stable and relliable3) Large-screen LCD,user ... ,no spark and maintenance free5) Efficiency is as high as 1% or more than 98%,power consumpation, ... the stability of the output voltage.Advantages TNS AC automatic Voltage stabilizerCPU intelligent control, digital circuitsstable and reliable, fast response ...