Priest of Lathander is one of the three class kits to Cleric. Characters choosing this kit option devote themselves to worshipping Lathander, the Morninglord and are restricted to taking an good alignemnt. As general rule, cleric kits gain two bonus wizards spells each without any added penalties compared to the base class, so it is generally advisable to always choose a kit that suits your alignment preferences over the vanilla Cleric class.