I purchased one about a month ago, brand new in unopened package. I am busy with a bathroom remodel so only briefly looked through it out the garage door a couple of times. Everything seemed ok.
My grandson came over a couple weeks later and wanted to look through it. The first thing he said is, "what is that line or blob?"
I looked, and could then see what he was talking about. There was a visible line of several sphere like blobs or dim spots. Faint, but certainly there. I told him no problem, they have a five year warranty.
I called IRAY USA the next day and the tech said to send them some pictures. After they viewed the pics they claimed it was user damage and would not warranty it. I talked with them probably a half dozen times but they will not change their position. They wouldn't even look at it.
Wished I would have stayed with Pulsar.