The best distance for installing the 120-inch projector curtain is about 3m to 3.5m, and the reference size of the 120-inch projector curtain is generally 2.441×1.83m..

When the projector with normal focal length reaches 80 inches, the distance is about 3 meters, which can be adjusted according to the screen size and the actual parameters of the projector.

Curtains are electric and manual, manual and non-self-locking, and the projection distance of the projector. Different brands and different distances generally need 4 meters. If even the computer or set-top box lines are messy, if there are more 5. 1 audio lines.