... 5 years warranty 35W,50W,70W,150W,250W,400W MH digital ballast for commercial lighting <70w technical dataModelMH-70W-ELighting Source TypeMH ... circuit and stable performance·Wide range of operation voltage, suitable for large voltage fluctuation circumstances ·Lower current to start, prolong ... ReportMounting diagram 35W,50W,70W,150W,250W,400W MH digital ballast for commercial lighting