Thanks for the response!
Ok, I’m going to take a second shot at explaining myself clearly. Thanks for the patience.
I have 2 rooms and have wired 10 outlets and 2 lights between them. The 2 lights will be 30w green cfls to be able to light the room when the “main” lights are out. I have wired these outlets and lights with 12-2 Romex and split them into 6 circuits. I will probably use 15-20a like you suggested because these outlets will have a light load. (pumps, circulation fans, etc.) 6 circuits is overkill but it’s already installed that way based on someone else’s advice.
Now for the main lights, at my max load the rooms will have 2000 and 5000 watts. I was going to use 10-2 Romex for this. I will just go over the wiring of the 5000w room to keep things clear. The way I see it, I will run the 10-2 from the breaker to the timer, (hardwired) then out of the timer to the roof of the 5000w room. Here is where my issues arise and the comment about the splitter comes in. I now have a wire coming from the timer and 5 lights, 5 ballasts, and 5 plugs.
1) If I do go 240v, how do I connect the 5 plugs from the lights to the Romex coming from the timer?
2) Since I’m not going to save money should I even mess with going 240v for the lights? What’s the benefit of 240v? Is it safer to lower the current?
If I kept it 120v then I would put a female plug on the end of the Romex coming from the timer, plug in a surge protector or splitter, and then plug the lights into the sp or splitter.
3) Can I combine the 6 circuits into 3? (combine them into pairs)
Thanks again for your responses, it’s a big help.