I have one pool light and one spa light. They wired into the same junction box but SEPARATE light switches. Both are wired to the same GFCI breaker at the wall. The problem is my SPA LIGHT trips the breaker (halfway) quite often. Example...if I turn on both switches at the same time, the spa light won't come on (breaker trips) but the pool light will. I'll have to go reset the breaker. Last night I had them BOTH on for a while and a few hours later, the spa light went out (tripped the breaker again). If they breaker is tripped, I can still operate the POOL LIGHT. The pool light hasn't ever gave me trouble, I can turn it on and off everytime as it should. It's the SPA LIGHT that has something wrong with it. COuld it just be a loose wire in the junction box?