What is warranty time? And what is the after sales service?

What is warranty time? And what is the after sales service?

---Warranty time is one year. if the projector have problems during the warranty period, please take videos, pictures or report about it, then we will figure it out by offering your technical support, send you spare parts, resend or refund you in the next order and so on, all of these solutions will be determined by the reality.
Warranty does not cover any damage that has been caused by the customer