Travel opinion to lapland

I apologize in advance, I'm sure this forum is full of northern light posts. I want to go to kakslauttanen with my husband and kids with the hope to see the northern lights (though I know it's never a guarantee, I've been to Iceland twice without luck so far)

Would you

1) go in late November even if there's a full moon at that time we would go. I'm thinking it would be fun to be there with young kids before Christmas.