This Celexon manual projector screen offers an incredible value for money. The high-quality screen is height adjustable and makes the screen suitable for different aspect ratios (1:1, 4:3, 16:9 formats). All Celexon manual screens have a gain factor of 1.0 suitable for both LCD and DLP projectors. This provides complete flexibility. The black back ensures that no light is lost and the projection is clear. The black border ensures increased contrast and improves the flatness of the fabric.1800 x 1020 (mm) Viewing area. 50mm black border (left/right) 50mm black drop (bottom), 400mm black drop (top) Housing dimensions: 2010 x 60 x 60mm (L+H+D) Incredible value for your money. Suitable for wall or ceiling mounting. With a gain factor of 1.0 ideal for Home Cinema and business environments. Black back impervious to light. Adjustable for different aspect ratios.