Yes, crazyhouse6, the crystal ball sconces come single. These are my final contenders, but leaning (right now) heavily toward the first one. The shade on it is actually glass. I also like the LENGTH (for my space) of the second one and the last two, but the last two are probably too modern. What do you guys vote for? Finding out later today if they can put the sconces on the towers without yanking out the towers and repainting. Here's my two favorite chandys and another inspiration photo so you can see where I'm coming from (if you don't already know!) - simple tile pattern, monochromatic, but romantic finishings:

This is now getting beyond frustrating.. :-/ Refinisher "A" (the same one who submitted the bare-bones quote for the separate new-install area) had quoted me $825 (no sales tax) to repair (install new oak) an area the size of the former fireplace heart,now removed, and strip/refinish the entire room which is 16x19. But he never responded to either phone messages or emails asking for clarification of his vague new-area quote, which gave me a bad feeling about using him. Refinisher "B" quoted me $904, including sales tax, to do the same job. This refinisher also separately quoted for the new-install area and alternatives to same in prefinished engineered. Yesterday after getting better quotes for the new-install area using prefinished engineered from a different company entirely, I emailed Refinisher B saying that I would like them to just do the repair/refinish 16x19 room (the third company does not do repair/refinish, only new installs of various hard floorings). They responded by email that the $904 quote was based on them doing the ENTIRE job (even though they supplied separate quotes) and if I want them to do only the one room it would be subject to their minimum repair/refinish charge which is $1150 plus sales tax. :-/ Now I am up the creek because that job should be done first before any of the other flooring, and my choice is either to sign with them to get on the schedule ASAP (and pay several hundred dollars more than I expected) -or- start from square one again and try to get more flooring guys in for estimates which... going by recent experience... will take weeks to even get them in the door. At this point I am disgusted. There was nothing on the $904 quote to indicate that it was based on them doing "the whole thing" and I clearly indicated to them at the beginning that I was getting separate quotes for the different flooring option areas of the house. Sorry, just need to vent.

In our last house the powder room had about the same sqare feet as yours does, just different dimensions. We had three halogen lights above the mirror and that was plenty of light for everyday use. I don't remember the actual bulb we used as we haven't lived there for almost a year. Just look for sconces that allow a brighter bulb or that use two bulbs in each sconce. I would use the lumen formula davidtay posted above. That will help you decide if the sconces you like will be bright enough. We did have a bathroom fan with a light installed above the toilet. That helped for when I wanted to clean the bathroom, or needed a brighter light for removing slivers, etc. as the bathroom was where we kept our first aid kit, but we could have gotten along fine without it as the light from the vanity fixture was enough for the room.

Yes, that should be enough. 120 watts is more than enough. Guests won't be shaving or putting on make-up (except maybe lipstick). I'd even put them on dimmers. Mood is more important than brilliance in a powder room.