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: I would like to use these lights in my kitchen, how bright are they? Also, can I install them after my gypsum ceiling goes up?
Document: I ordered 3 sets of these, and I was very surprised at how nice these are in person compared to the pictures shown online. I got my cousin who owns an electrical business to install them and he was also surprised in the quality and look of them. These are great for smaller rooms or just want a less conspicuous source of ceiling lighting, as they are smaller than standard sized can lights.
We wanted to put recessed lighting in our kitchen for a remodel - I love the lighting and the ease of installing them - only dislike was that the bulbs were halogen and wanted LED - but a very quality product and would recommend to anyone looking for 4&#34; recessed lights
The halogen ones that came with them are very bright and light up the whole living room, but we are looking to be more cost efficient. One thing to note, is that these are not compliant with electrical standards so in order to install these, you must move attic insulation at least 15 inches away from each unit (I think) or buy fire/heat retardant can light covers which can also be found on amazon. Since LED lights do not emit any noticeable heat, we just moved the insulation away.
Easy to install; great looking. These are much smaller in diameter than traditional recessed lights and look fantastic. Ours are installed in our home in Mexico so no need to worry about insulation. For a ceiling in the US; these can not be installed near installation due to heat/combustion issues. You would need to buy something additional for that type of installation.
I purchased these lights for my kitchen and they turned out great! They were easy to install and to wire. I'd suggest using a hole saw and a shopvac  as it made cutting the openings quick and clean.
I never write reviews, but these lights have now gone in 5 rooms in my house and will continue to go in as I remodel in the future! They look great, are easy to install, and are 15% of the cost of a comparable product in 2 local stores. Highly recommended!
Don't hesitate to buy these if this what you need. Easy install and quality lights. Nice effect on the granite and sufficient illumination.
Included are 50w bulbs. I tried swapping them out with much dimmer wattage, only to find out they wouldn't fit. The casing doesn't snap a smaller diameter bulb well.Instead, I purchased a $10 lutron dimmer switch - it works perfectly. These directional recessed lights work very well for creating ambiance in a theater environment.
Answer: yes