I have been researching lasers for quite a while. I would like to know from those of you that have replaced your tubes. What brand of tube, what wattage,length of time before replacement, price, why it needed replacement, ( electronics or gas) and machine brand. You could add any comments if you want. If you would be so kind as to send to my email , i will keep names confidential. This way you can fully express your thoughts. If you want, you can express your views of your dealer/distributor/tech support. I might put up numbers so that the poll numbers can be used in new purchase decisions will be more enlightened. I think this will benefit all, including manufacturers, dealers and tech support. Please, this is for owners only. I know of some tech guys on here that i think are very good help for instance, I also have opinions on some manufacturers. As far as i've seen, some dealers and their tech support do not post on here. So i have no idea how things are with them. And i will post results in a condensed numbers version. Maybe 3 columns for positive, neutral and negative experience. If you would be so kind as to send me your experiences, I would greatly appreciate it. The more who participate, the better "picture" we will have. Thank you kindly. rick