Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: is this light 110 volt or is it battery . thanks
Document: One you push to the back to turn on and the other you push to the front.The product description doesn't seem to mention that it automatically adjusts between 110 volts and 220 volts. Good for international use.
the light is a cool light but I haven't figured how to change the bulb when it burns out. HELP!
My daughter loves this light on her desk. Its so convenient and flexible and the lighting is perfect w/o glare at all.
Its useless.. The light does not cover a whole lot of area and is not very bright. I should have spent more money and got a better one.
Its very light but sturdy enough I think. Cord is only 3' or less though, so, going to need an extension cord or something.
I was a little skeptical of these because of the low price but they are great. Nice white light, pretty bright and just right for reading in bed.
The light cast is bright and does not flicker, as advertised. The lamp stays cool. It is great for a small space. I'm happy with this one and can recommend it~
I have this lamp beside my computer. It gives a good light that I can focus on paper and it does not shine on the computer screen. I'm very satisfied with it.
this lamp has a classical design, save energy and doesn't release any heat during working time! the light is suitable for reading and other job! good desk lamp!
This lamp seems well made, and It is really bright compared to what I expected! Not so bright that you're blinded, but enough to light up a good section of a room!
Answer: no