Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: what is the actual, physical size of this bulb?
Document: These are brighter than most LED bulbs. Same size as normal light bulbs, their color is a bit whiter than normal light bulbs. I've only had them a couple of months, so I don't really know how long they will last.
I have now ordered 2 of these. First one I ordered was the white colored light. This light made a humming sound. I thought maybe it was defective, so I ordered the warm white. Nope same humming sound. Its loud enough that it is irritating. Like an old fluorescent lamp. I really like the size, price, and the amount of light they put out, but the humming sound is a deal killer.
These give off very good light and I like the shorter profile. Recommended when you don't want a long bulb to protrude from a fixture
This is the second batch of LED lights I've bought from PacLights. I like these much better than CCFL bulbs. Just be aware that the light output pattern isn't the same as an incandescent bulb because the bottom half is opaque.
A number of A19 bulbs have the problem of not meeting the industry spec of operating only in frequencies outside of the range used by garage doors, and that type of off-spec bulb will totally stop the garage door from operating. This bulb does not have that problem fortunately.
This bulb is exceptional. I got it for use above our kitchen island. We had used other bulbs, but my wife did not think they gave enough light--not as good as a 75 watt incandescent. This bulb outdoes both the incandescent and the CFL we had in before. Only problem is, Amazon is out of stock now, as is the manufacturer. Hopefully they will get them in again as I want to order more for other purposes.
These are supposed to be the equivalent of a 75 watt bulb, When I put them side by side, in the same room, the 75 watt incandescent bulb is much brighter. The light from the LED bulb is also very yellow. I have a hard time reading with this bulb and not with the normal 75 watt incandescent. I would not buy them again.
If they last as long as they say they will, these are worth the price. I am using them in a six bulb dining room fixture and in the pendants over the bar in the kitchen. More light output than the 60 watt incandescent bulbs I had in before. I have purchased 4 sets at the 4 pack price and I am going to by more to replace the rest of my bulbs.
I have been switching to all LED light bulbs and have tried various types and brands. Of the eight of these, seven worked and one did not (a pain to return for one light bulb) and the one that doesn't work does light up but seems to take 5 minutes to warm up and then lights. For price, compared to others, and for light that you are use to in your home, these bulbs should do the job.
The items were as advertised. I was very pleased with the first turn on of the lights. I used this to replace a cfl bulb in my bathroom that was not an instant on one. The cfl burned out quicker than the regular incandescent bulbs that I had throughout the room so I was obviously looking for an upgrade from the cfl. This bulb was on instantly and really brightened up the room. All thats left is to pass the time test.
Answer: yes