XV1 Loupe + Light

I have owned many Loupes, and from a few different companies. Once working with magnification, I found that I could not work without it. The light on these loupes needs to be redirected many times, but that is good because it is easy to move it to different areas. However, I wish the light could be tightened down to resist movement a little more. The light goes out at times, I haven't figured out why. I suspect it may be the batteries needing to be replaced(the rechargable batteries are now a year old), or it could be the light over heating and shutting down for a few hours. The O rings go bad at the battery connection, but they sent me some more at no charge(still within the 1 yr warranty). About the light shutting down, they asked me to send them to check out the reason, but I can't part with them. I am hooked. They are portable, comfortable, and I am not tied down to a wire connected to my belt. I have never owned a light before this pair. My previous loupes were Orascoptic, same mag., so I may purchase a portable light for them and send in this pair for any tune up that may be needed. Despite my problems, and the cost, I would buy them again.