![HELP: my k40 is losing power, my tube looks like this and I'm not sure if that's bad. It's pumping water fine, mirrors are aligned but losing power quite quickly, I only HELP: my k40 is losing power, my tube looks like this and I'm not sure if that's bad. It's pumping water fine, mirrors are aligned but losing power quite quickly, I only](https://preview.redd.it/ng3qrfe5j9161.jpg?width=640&crop=smart&auto=webp&s=ae29e4a82fbb23a32b159aeb4835aaaf2b4fc140)
HELP: my k40 is losing power, my tube looks like this and I'm not sure if that's bad. It's pumping water fine, mirrors are aligned but losing power quite quickly, I only
![How to Test and Set a Chinese (China) Made CO2 Laser Power Supply to Get Long Life From Your CO2 Laser Tube for Your Laser Engraving and Laser Cutting Machine System : How to Test and Set a Chinese (China) Made CO2 Laser Power Supply to Get Long Life From Your CO2 Laser Tube for Your Laser Engraving and Laser Cutting Machine System :](https://content.instructables.com/FQV/G5X5/HLJUZR8A/FQVG5X5HLJUZR8A.jpg?auto=webp&fit=bounds&frame=1&height=620&width=620)
How to Test and Set a Chinese (China) Made CO2 Laser Power Supply to Get Long Life From Your CO2 Laser Tube for Your Laser Engraving and Laser Cutting Machine System :
![7 things you need to know before buy a fiber laser engraving machine - manufacturers of Laser fiber marking technology 7 things you need to know before buy a fiber laser engraving machine - manufacturers of Laser fiber marking technology](https://image.jimcdn.com/app/cms/image/transf/dimension=4000x3000:format=jpg/path/s4ce11061b5b4d756/image/i88dc6d85db7929df/version/1567588553/image.jpg)
7 things you need to know before buy a fiber laser engraving machine - manufacturers of Laser fiber marking technology
![Laser Engraving Cutting Machine | Ortur Laser Master 3 | Laser Engraver | Power Diode - Laser Engraving Machine - Aliexpress Laser Engraving Cutting Machine | Ortur Laser Master 3 | Laser Engraver | Power Diode - Laser Engraving Machine - Aliexpress](https://ae01.alicdn.com/kf/Sa7c29192ea274ce0b025448e285ed243t/ORTUR-OLM3-10W-Power-Diode-Laser-Engraver-Wifi-App-Offline-Control-20000MM-Min-Metal-Engraving-Wood.jpg)