Carl, I hear you on the fear of 120 volt lights However, probably 90% of the ones I've worked on are 120v - the only time I've gotten "zapped" doing a light is when the ***hole electrician left the unconnected wires 'live' and I was trimming the ends to connect the light to it.

BTW - 120 volts 'tingles/ stings' - 240 hurts

It's always better to err on the side of caution, so have the breaker off when doing electrical work - you DO need to have the breaker on to test the fixtures with a voltmeter