I hit him that he let go of my tube k40 but now my

I hit him that he let go of my tube k40 but now my laser projects . I do not get the laser tube .
Someone who can help me do not know any technical

That tube is dead, you need to buy a new one.

As per previous comments, make sure that:

  • your water is not too cold and never exceeds 25c.
  • there are no air bubbles in the tube before operating.
  • your water pump is operational
  • you don’t exceed 15mA power

Otherwise you are certain to end up with another broken tube…