Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: What is the width of the round plate that attaches to the wall?
Document: Bought two for twin beds. Installation went ok including cord covers. It was a little harder to get the fixture aligned in the correct direction than I expected - some marking on the wall plate would have been helpful. The lights work well for reading since the beam is focused and a sleeper in the next bed is less likely to be disturbed. They are hot in operation as expected for halogen.
I did some experimenting and web research and came up with 48 inches from the floor to the top edge of the mounting "base". The inside edge of the base (the part of the base closest to the headboard) is four inches from the outside edge of my headboard which is the same width as my mattress. If your headboard extends beyond the width of the mattress you would want to take that into account. My formula may or may not work for you, but might serve as a useful starting point.
I ordered this lamp because it shows the cord coming out at the bottom of the light so you can plug It in. In fact, it is suggested you buy it with the metal cord cover. However, the lamp I received has to be wired into the wall. I have no use for it, but because I was collecting everything I needed to redecorate a room, now it is too late to return it. Very deceptive!
Bought two, using them in a murphy bed. Small enough to fold up near the wall that allows me to close the bed without hitting the lamp. Like that it is movable and dimmable! The light does get very hot. Have to make sure no one ever folds up the bed with the light on. Nice quality, pleasing looks, works well!
Originally I purchased two of these to be wall sconces, but with the plug-in hardware it couldn't be modified. Then when I hung them by our bed as night-time reading lamps, one started smoking, accompanied by a strong burning odor. I unscrewed the UV glass protection to make sure the LED light was properly in place, but it continued to smoke.The design is attractive, but not worth the fire risk.
We bought two of these to replace lamps that were taking up too much space on our bedside tables. What a great choice! They're attractive and well made with a nice, brushed bronze finish. The dimmers are perfect and while the shade is easy to adjust it's not too loose and holds its position. A friend wall-mounted them for us but used screws that were a little bulkier than what they came with. We're really pleased at the quality and the look.
They're that nice.Most of the time I don't bother to extend the arm when I'm reading in bed. Simply adjusting the angle of the shade gives me ample reading light, and no halogen heat.I think the secret of these bedside wall-mounted lamps is to get the right height from the floor and the best distance from your headboard (or where the headboard would be on the wall). With two people you can experiment on the best location--one to hold the light in place and the other to "play" user.
I purchased two lights to hang on the wall above the headboard in my bedroom for reading. My husband and I like to read before falling asleep, but the lamps on our nightstands didn't put out enough light. I couldn't be happier with these small halogen lamps. They're really bright but have dimmers so that if one of us falls asleep first, the light isn't too bright. I read some of the reviews that the light was smaller than expected. Not a problem for us. In fact, I wouldn't want a bigger light over the bed.
Reasonably well made for the price. The looks of the black cord is a problem for some people, not me. Mounting instructions lack specifics on how to anchor it firmly to the wall. If you're mounting on wood there's no problem but in dry wall you had better have some expertise. Three well designed anchors are included but you must drill the proper size holes. Some have said the swing arm is too loose but mine was rather stiff to adjust so the base must be firmly mounted or with repeated adjusting the base could pull loose.
I am happy with this product. We have reading lights by our bed and had the previous generation of this product for severals years. They have made some really good improvements. The only items I would like to see are slightly longer arms and direct mount ability but in general, this is a really good product. What I mean by direct mount is our locations are already wired so I had to cut the cable and wire them in directly to the box in the wall. We looked through and actually bought several lights for this application (and tried them) and finally landed on this one.
Answer: no