I lived at this house for 10 years but I have always wondered about this.
My Pool, Spa & Security Lights are On the Same Breaker. But here's the thing. If I turn On the outside switch on the wall for Pool Lights, The Pool Lights come on normally bright. Then when I Turn On The Switch for the Security Lights, the Security Lights come On but they Dim the Pool & Spa Light to practically no light. Is this Normal? Has anyone ever seen this before? From what I can see, Somehow the Pool Lights & the Security Lights seem to be wired in series if you will. I'm just guessing that's the right term, not sure. We have never had a Problem with this Set Up in the Past or Present. But it would make sense to me, since both items are on separate switches, they should work independently of one another, even though they are both on the same Breaker. I know nothing about this. So I'm looking for help.