Motorized AV Stumpfl Magnum projection screen with a 4:3 aspect ratio and a 575 × 430 cm overall screen size. The complete set includes the Strato projection surface, frame, stand and motorized roll-up housing. The STRATO surface is a matt-white coated non-woven glass-fiber screen with a gain of 1.0. The casing measures 21 × 21 cm. The full set has a net weight of 108 kg and uses a 230 V tubular motor with safety features.