Thanks for the offer opie, but i figured it out. There's only three wire spaces. The other one looks like its just a spare. Cause nothing goes into it. The labels are live neutral and earth. Thanks for the help though, hope you don mind if i call on you again in the near future, my grow op starts in january. I'm doing a closet scrog. Do you know if i can do that hydro or do i have to use a soilless mix?