AV Stumpfl Inline-Motor Strato is a complete 4:3 projection screen set with a 400 × 300 cm overall screen size and a 16 × 16 cm white RAL9016 powder-coated extruded-aluminium casing. The set includes the frame, stand and STRATO matt-white coated non-woven glass-fibre projection surface with gain 1.0. Its 230 V tube motor provides fast, silent operation and includes electromagnetic disk brakes and overtemperature protection.