Within the first half of guarantee period from exit-factory date on the label, we replace free of charge if the power is less than 80% of rated power while the users operate according to our manual. The replaced laser tube will have same warranty as new ones. The single transportation freight will be afforded by buyer. When the laser tube structure is damaged or changed, we will not be responsible.
Customers need to provide feedback and relevant photos and videos if problems have arisen during their use of the CO2 laser tube and related products.
Please use soft water as the cooling liquid, though distilled water and purified water are also applicable. The water temperature should be controlled within a 12-30℃ range. If the water temperature is above that, please replace the cooling liquid, or switch off the water cooler.
If in a cold region, please drain the cooling water from the CO₂ Laser tube after use, otherwise the cooling water may freeze and break the glass tube. (Special note: When using an alternating current, please make sure the water tank has a safe ground connection.)
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