"sun and suns"

Your question makes little sense. I know of no expression which reads: "suns and suns." Sun is the name we give to the day star, the star around which the earth orbits. If you have seen this in a sentence, then you need to provide the sentence if you expect a reasonable answer.

We cannot answer bizarre questions about something you have read if we don't have the context. Come back and give the sentence you read it in.

And if you come with the context, Set will make you an answer as bright as a thousand suns...

Hehehe... Hi, Francis, so humorous u r!