The central air kicks on without my lights dimming, and I am in North
Central Florica.



Mine dim slightly for an instant when my 3 ton heat pump kicks in, it's
only noticeable with the few incandescent lights left in the house
though. The LRA on that thing is something like 90A. I think most of the
drop must be in the 50' or so of 2/0 AL wire between the meter base and
the transformer though as they don't seem to dim at all from any of the
neighbors.