The AV Stumpfl Magnum-Motor Strato is a complete motorized 4:3 projection screen set for large-format presentations. It includes the screen, frame, stand and STRATO projection surface, a matt-white coated non-woven glass-fiber material with a gain of 1.0. The screen measures 850 × 400 cm and is supplied in a 36 × 36 cm case. The system uses a 230 V tubular motor and is designed for stationary use.