We always try our best to make sure of the quality of our products，in order to maintain both parts profit wholelife. Derein will give two years free maintenance .
1. Maintenance Extent
|PCB Board||2 years|
|Laser Diode||6 months|
|Laser Show software
2. Maintenance Certification
(1). QC will test the products exactly before sending, the QC marked the date in the frame of the products is Ex-factory, please don’t tear it. moreover, DIY repair machines also can damaged the lable, as a result we can’t recognize the Ex-factory time.
(2). Please keep your order’s information ,we will make archive records when you maintain your products.
3. Payment for Maintenance
(1). artificial damage
(2). maintain other company’s products
(3). contrary to operation procedure causing the machine program cannot recover
(4). failed update and lost data of chips
You have to pay for the shipping fee when you return the goods, and we will undertake the shipping fee when we send you.