1.practical.Key-press resetting 2.display in figure to remind assistantly Over current protection .Starting at high speed.Safe and practical.Key-press resetting.Operate simply and conveniently. Power supply output:0-15V,constant adjustable,display in figure to remind assistantly.Offset files with different volts(1.5V,3.6V,4.8V,6V,7.2V) Supply voltage: 110V/220V 50HZ/60HZ. Output voltage: 0-15V. ...