... and control board, upgrade reliabilityEfficiencyHigh, above 90% for 15V output rectifierSave running cost (electricity cost), energy ... savingLifespanLong, more than 15 yearsAverage cost for one year is very lowProtectionsComplete, Phase loss, input ... imported products, example: we use digital meter 200RMB aboveHigh quality of rectifierControl DSP digital control, USA company DSP chip ...