i have a 130 w reci laser tube.

problem i am facing that it is a screw tube so there is some sparking at phase end(Positive end) of the tube i used insulation tape to stop the sparking but still there is a noise of sparking due to insulation tape sparking is not coming out.

now pink beam is inducing in the tube but the output of the beam is not coming out from the neutral end ( Negative End) of the tube.

is my tube is gone???
it survives more then a year.

now plss give me some suggestion as sson as possible.