View Full Version : chinese 50watt laser tube fault

31-05-2021, 10:04 AM
i have a new 50 watt laser tube that's arching over to the metal ring inside the tube at the end where the laser comes out of the tube. its causing me to get 4 points of the beam at all mirrors. and a very weak laser at the lens, the beam is a nice pink color, not sure if tube is bad. regards mike