... to install 2.light weight and no high voltage 3.series resonance circuit 4.stability,save energy 1.Technique parameter of kechuang ... itself,such as over-voltage,over current,lack of water,phase fail,over hot,etc. 8).Digital auto-control,it has ... . such as, over-voltage, over-current,lack of water, phase fail,etc.3)auto frequency tracking, the power can be adjusted to ...