something else to remember is that using a good gauge wire is necessary. I have two 20 amp dedicated circuits coming into my game room. One is 10 gauge wire and the other is 12...(I got a good deal on the bigger wire so I just bought it). Going to run 4 games on each circuit. 8 games total.
As Vid mentions...I have a TZ, a TAF and a CFTBL...all would reset when there was a drop in voltage. (old circuit was tied to a bunch of other stuff in the house and was only a 15 amp.) I think with LED's in the games and having the games on a 20 amp circuit I should be in good shape.