I think we killed 6 before we were downed, so it was not even close. They ambushed us too.
That was the 4th fight of the campaign, although it was right after a long rest. Previously we had defeated 5 shadows, 2 shadows and a skeletal warhorse and 4 Hobgoblins. We had just looted the Hobs (4 suits of Halfplate at level 1!), took a long rest and then went into the next area where the Kobolds were. We are playing with 6PCs otherwise we would have leveled I am sure.
In the end we were revived by the bad guy, their leader, a half-orc. He stripped us naked and threw into the slums with 1hp no money or treasure (no more halfplate

)
So we are starting next week still level 1 with no gear, no money, no spellbook for the Wizard and the same mission ahead of us.
I think the plan is to wander around the slums until we get attacked so we can get enough XP to level and have a few weapons.