SenTECH60W CO2 Glass Laser Tube 1200mm Length Dia 60mm for Laser Engraving and Cutting Machine (Buy More Discounts)

I needed to replace a weak tube in my K40, and went with this over some slightly lower-priced options based on the reviews and product rating. I'm very happy with it. I did a bit of an overhaul to my machine while I had the tube out, new lights, water cooling loop, new bed, mirrors, fume extraction, and lens. It's running better than it ever has. This tube is outputting excellent power. It arrived very well-packaged in double boxes, with lots of foam. No issues with packaging whatsoever. I think what I appreciated the most though is that it comes with pole leads already attached. I picked up slicone in advance, and was really relieved to not have to use it to secure the leads to each pole post. I was dreading that. I'm sure I'd make a mess of that. I simply cut back the wiring soldered in the new leads that were already attached, slipped on my hoses and I was up and running. I don't know if I had a junk tube from the start or what, but the power from this tube/setup is significantly better than when I got the machine brand new. I hope this tube lasts me a long time, but as of right now I can say that I would buy this again, and recommend it to any K40 owner out there who's on the fence about whether this tube is worth the $20 or whatever they might be able to save elsewhere. You'll get a good tube with pole leads installed that is well-packaged in just a few days time.

This dropped in to replace my 40W bulb on my Full Spectrum Laser Hobby 5th Gen. It's working great. I would love to know how many mA to get the most efficient use, but I can't find that information. It was easy to replace the old bulb and is working great.

So thankful for the installed leads on the ends. My laser was quickly back up and running. I also think that the packaging was excellent, so that I didn't have to worry about it arriving broken. Hopefully, I will not need another tube any time soon, but if I do - I will order here. Note to laser hobbyists - My laser was by a window, and vented out. My laser froze during a deep freeze and broke. If you have your laser conveniently vented by a window, make sure your laser tube does not freeze!!

I was amazed at how well this laser tube was packed , large box with two other boxes inside , lots of padding .The glass laser tube worked perfect with no problems and good power . Will be ordering a second tube from this seller as a backup .

I bought an Orion K40 (the red/white one) awhile back on Amazon and the tube went out. I wanted to buy from Amazon since shipping was a lot quicker even though I could have gotten it cheaper off eBay. It arrived in 2 days and it is very well packaged with padding in the shipping box and also inside of the box for the tube (it comes double boxed). No issues with installing it either - I ended up switching to the high voltage connectors to make it easier for next time. Would gladly buy this tube again.

We only put a few hours on the laser tube before it stopped working.

This laser works great. It is far more powerful than the original tube at the same power settings.

Was very impressed still using it with great results