Having high working frequency. Small in volume, light and easy to carry.Having the function of auto-compensation for the fluctuation of mains voltage. Having outstanding ability in anti-fluctuation of the mains. Working normally when the power voltage changs between 80% and 120% of the rated voltage.

Model : ZX7-NL-120 , ZX7-NL-140 ,ZX7-NL-160 ,ZX7-NL-180 .