In the exterior surface of window mirror. 1 When the mirror is polluted, do not turn on the laser. 2 Blow the mirror surface sideways with an air blower. 3 Spray the pure alcohol on the mirror surface with sprayer. 4 Turn on the laser after the alcohol gets fully volatilized.5 If the methods above don't work effectively, it is necessary to ask for the professional to use tampon. With alcohol to clean the mirror surface from middle to edge. The best solution is to prevent the window. Attention: it is forbidden to clean the mirror with acetone.
The screws in the front and back ends of the laser tube are not allowed to be moved, otherwise the output power. Will be declined, even the tube will be scrapped. Put the acryl 300mm far away from output mirror, when testing its laser spot. The laser beam is invisible light.
Please wear protective glasses when debugging the laser. The positive pole is in high voltage.Pay attention to the security marks. This item is in the category "Business & Industrial\Printing & Graphic Arts\Screen & Specialty Printing\Engraving".
The seller is "usfocallaser" and is located in this country: PL. This item can be shipped to United States, all countries in Europe, Canada, Japan, Australia.