Hello all, hmmmmmmm... this one has me going. Here is the situation. I have a outdoor transformer with photocell. It is a 600watt, with 2 legs of 300 watt. The lights total 10 that are submersibles for the pond, and are 12volt, purchased from same Co. I have the transformer about 9 feet from a central "hub" where each leg running from the transformer fractions out to 5 lights. I'm fairly sure I'm not surpassing the 600watt max on all these lights. What makes me a little uncertain is I think the wifey might have changed out a 35w and replaced with a 50watt, and maybe now am surpassing ? For a year ( before wifey )... things were fine. Then, I noticed the lights starting going down. It's not every single one... just certain ones. When I lookat the splice areas what is nutty is one light spliced into another on a leg... there might be one down from that leg but not the rest ? weird.............. I have also noticed BAD burning and corrosion on the splice areas. What could be causing all this ? Let's say I'm not over the 600w limit.... is it bad wing nuts over the metal splice points ? to small on the 12/2 that runs from the trans to the splice point "hub" In the pic of the splice... that's not even half of the char that I normally see. The lights will work for a couple days,.... charge the splice.. and then back to certain lights off. What could I amend or change to get away from such a problem ?