Board Thread:Help Desk/@comment-5873376-20141107153343/@comment-24821572-20141109071708

Don't be bloody ridiculous Jojo. That room is as bright as can be, and one light source is enough, no matter how dim the room may be.

Golden Furniture do count as normal ones. From here I can only guess two problems, one is that there's not enough free space in the room, which can easily fixed by removing one of the wide items. Or second, there's a crimson/corruption blocks nearby underground just in range of that room. You'll have to hunt them down and purify them if that's the case. Also... I doubt it's the case but the walls are completely sealed, yea?