is LUXON HV210 screen????I used.it use the vinyl scteen surface composition,its high-prolliferation,so that when the light projection full,uniform distribution.Prevent Washmarking,inhibit hotspot and color is off.The LUXON srceen expceptionally smooth,and a huge visual angle.Adopt special coating the back of the screen,the more layered.Elegant appearance and the integration of date design,to screen all of force appropriate to the screen more durable and level.This screen have manual and dynamoelectric.