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AfterSale CommonProblem technical

1. To provide product consulting services

2. Lifelong provide a sound solution

3. To provide professional custom services

4. According to the specific project requirements for on-site guidance

5. 30 days quality problems occur replacement, one year repair, optical components two-year warranty, the other three-year warranty and lifetime maintenance! (Artificial, lightning, natural disasters not covered under warranty)

6. Product use questions and program advice, 7 * 24 hours to provide technical support