Sure, we have CAD and video to help you installation.
Our products can use 100'000 hours, that's mean's use 8-10 years no problems.
We has Free part for after many years repair.
Our factory in Shenzhen China.
If you coming from Guangzhou to our factory about 1.5-2 hours by Car, if by Metro just 35 minits.
We go airport about 1 hour, also the airport has Metro, Our factory to Metro station about 20 minits.