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: is it 110 or 220
Document: Wow, great TIG welder, and kit is complete. Very happy with my purchase. Can't beat the performance for the price.
Used it the day it came right out of the box. Welded a bracket on an under counter top ironing board that slides in and out from under the counter. machine is perfect for the welding I do around the house and garage.
Unit works well had one little problem called the company and they jumped all over it. It was taken care of immediatly. Not to mention they had the best price out there. You will not be dissapointed with either.
I have used one of these welders commercially in the food grade industry for nearly two years, never had any over heating issues and it tig welds stainless amazingly well. I found i used it more than the 220v Miller we had at work. This in my opinion welds just as well as the similar 110v Miller model does for a fraction of the price, I love it
Answer: no