Hi, there!
I am going to build a home Theater.
I am looking at VAVA laser UST projector and Vividstorm screen recently.
I saw a lot of review video about Vividstorm screen on Youtube.
The introduction is quite good, the picture is clear and Vivid.
I saw there are sell on Amazon and Alibaba and some other shop.
Is there anybody who buy it from China directly?
Do you have experience to share?
Thank you!
Thank you so much!
i will contact with them.
Just sharing , in every products that you buy there is pros and cons . Be it the quality or is it suitable/ acclimatize to local environment as that is some thing to consider when buying it .
That in long run products will change its performance .
If you are looking for just good brightness , less sharpness and light path uniformity is not critical for PJ the UST are great product to use . If screen material are not sharp and uneven flatness at time happens and it is acceptable that the two combination will be a good decision purchase for you .
If your demand is of great sharpness , uniform brightness and long lasting PJ those conventional mid and standard throw lens PJ will be the choice. A good fiber glass base or poly vinly screen material will be ideal for you best fixed screen or motorize tab tension .
Lastly if space is constrain and like to watch with light on those item you selected will be applicable .
Hope that helps
Speaking from great experience Alf! 
great, thank you 
Yes sir , i do those physical testing by using test pattern with new type 4k /UHD with glass lens type of projector . On the screen material its self , there is also a climate environment testing to see how it reacts.
That is how my research comes to a conclusion … 
lah .
Of course. This is the way to do it else you will not know how to sell. Likewise I do test before I take in new product to sell 
Yes sir .
Hi Alf, from what you were describing here, there is a shelf life of screens and how long would that be generally speaking? Btw, my screen was made with grey screen materials, so, I would basically experience a darker picture? Is it better for me to change it to the lighter ones which I have noticed that’s been the practice nowadays? Thank you.
Hi Cnng121 , for the UST or Ultra short throw projector you can use white , light grey or with surface with optical finish . All are made of base material . The projection image will also varies depending on the type use .
In My testing room i have various type off screen material and size for different application from current standard throw , mid throw and ultra short throw .