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: How quiet is this ballast when running? I really can't stand any humming from florescent lights.
Document: This ballast will replace ballast's for 2 lamps (22w and 32w circular bulbs). Usually find in kitchen lights. The original ballast for the light I had was discontinued. This ballast was a great replacement if not better considering it's not magnetic.Took a while to ship out. Shipped with prime but still took a week to get here.
I got a much bulkier version of this ballast from Home Depot and it was spotty from the start, with mislabeled wires for the different wattage bulbs. After I tried reversing the wires and finding out that it worked, the joy lasted for but 3 days when the lights would only dimly turn on again. I plugged this guy in and right away the lights lit up quickly and so far reliably. I'll post more if it goes out anytime soon.
Have a 2 concentric fluorescent light from a major home repair dealership. Turns out the ballast was the problem for one of the failed lights. Read the catalog # on the ballast, googled it, and saw a number of happy reviewers who had a similar experience with Amazon-delivered ballast from the same manufacturer. You can now add my name to the list-- everything installed within about 10 min, and it fired right up.
I could not find a ballast with the right dimensions to fit inside my light fixture. This was an exact replacement.
I chose a five star rating because this ballast met my requirements in every way and I will recommend it to others.
It's an electronic ballast, so it starts quickly which I flip the switch. I hope it lasts. Works with the FC12/16 (32 and 40 watt) fixtures that were so popular a few years ago.
I bought this ballast to replace the failed one in my kitchen light fixture. I had previously stopped at a hardware store to seek a replacement. The price I was quoted was more than twice what I paid for the complete light! When I got home I went directly to Amazon, where I found this one. It wasn't a direct replacement, as the mount holes weren't quite the same, but the power put out by the ballast was the same.
The Keystone Ballasts worked great. It was just what I needed.
Came fast and easy to install. It worked perfect with not fuss. I will buy it again!
It is much lighter than the old one which lasted 15 years. This one is guaranteed for a couple of years. It fixed the light and that is all I required. It was shipped fast and I am happy..
Answer: no