... 10mm 1NO+1NC contact:sillver with goldplating ROHS, IP40 lighted with led 1. Installation diemeter: 10MM;sillver with goldplating2. operation: auto- ... : indicator lamp, push button switch with lamp push button switch, selector switch, with lamp selector switch, key switch, ... so on; ON sale installation diemeter : 8mm,10mm,12mm,16mm,22mm,25mm; 10mm mini push button switch lighted momentary or on off