I was approached by a friend of mine that has a new business and when the sign guys hung the sign on the front of building informed her that there was no power run for the sign. She had a couple of contracts give her a bid on doing the work. One told her that she was going to need a lighting contactor and the other one said she could just use a switch. The sign is made of many LEDs and what she tells me is that she was told that total amperage is 4 amps on 120v. She asked me I told her I'm not sure, because I'm not sure if Leds would have an inrush of current upon being turned on.I am curious on what the requirements for a lighting contactor are in this situation.
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