brooder temperature???

Hi,

I will hopefully be getting 4 light Sussex chicks, 2 weeks old.

buuuuut its been a little while since i had some chicks in the brooder, so what temperature should it be for them?

thanks in advance, and sorry for posting a lot lately 

Mia

thanks very much for the info!! the light Sussex deal has fallen through  she sold them to someone else ! but I still needed the info as I have some eggs in the incubator! so I'll have to go back to searching for chicks!! perhaps I'll post something on the swap shop, although I know people would rather I payed and as your not allowed to do that at the swap shop I don't really think I would get any results! oh well