1.voltage: 12VDC,24VDC,48VDC,110VAC,220VAC 2.Color: Yellow,White 3.with emergency to stop or return spring 4.one,two,three ho push button box control station control unit1.voltage: 12VDC,24VDC,48VDC,110VAC,220VAC2.Color: Yellow,White3.with key,flash,self-lock,convex,return spring,with light,double push button with lamp etc.4.IP40-IP655.one or two or three or four or five or six hole white,yellow ...