2. Warranty Rules for Laser Head and Tube

A. Laser Head WarrantyRules:
    The rate of laser power drop is related to the frequency of use, working hours, and working environment.

B. Laser Tube Warranty Rules:
    a). If the laser tube is found to be damaged during the first unpacking inspection, after-sales warranty service can be provided normally；
    b). During the warranty period, if the laser tube cannot emit light normally, but no obvious appearance defects are found, after-sales warranty services can be provided normally;
    c). During the warranty period, if the laser tube has any appearance cracks (including but not limited to cracks caused by improper handling or cracks caused by freezing temperatures), after-sales warranty services can't be provided normally.