When off, all three prongs float. When on, all three are connected. It doesn't matter one bit which you use Martin PS We use these for our foglight conversions. Tom Watkins wrote: >I have a question for anyone who has bought these from DMCH. The >on/off switches have 3 prongs on it. I was going to use this as an >in-line on/off switch for my installed flux capacitor that I bought. >Can I use this switch with only 2 wires? > > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/