battery voltage 1.CE UL SAA approved 2.TOP ten in China 3.We can provide meter ,voltmeter,ammter,power We can provide meter ,voltmeter,ammter,power meter,domestic electric meterskwh panel meter.......Shape and hole cutout dimension Unit :mmSizePanel dimensionCase dimensionHole cutout dimensionWHWHDWH120×12012012011011080111111160×80160801507510011211296×969696909080919180×8080807474807575120× ...