Semi buffer projector screens are motorless manual projector screens that have the same function as electric projector screens. it contains a specially heated spring, which gives extra durability to the projector screens. just pull 2cm and release it. the projector screens will go up automatically in silence.
Please note: This screen is suitable for “Short Throw” and “Normal Throw” projector. It is not suitable for “Ultra Short Throw” Projector.