Should I have a different temp to lights on?

When lights are on my temps are 26-27c /lights out 23c-24c will this be okay or should I lower temps when lights off?

I wouldn't be concerned about that.
If it was falling back to 19/20c I'd be happy with that to.

If it's for free ideal, if you're running something that $ costs it's not absolutely necessary.

Na it’s a hot house but I’m trying to find out if there should be a difference between night n day or if it could stay same temp I’m in the process of switching from 600hp to 720led so just trying to make it go down abit more when lights off or should it be sweet @Star Dog also thanks for reply