The beamer screen has a high-quality, quiet motor and is infinitely lockable. The screen has black edges for better contrast and a black back. The celexon screen motor economy series is characterised by the good workmanship of all materials and components used. With the matt white coating and a gain factor of 1.2 a good colour reproduction is achieved. Even under light conditions the projected image appears rich in contrast and offers sufficient depth. The black, opaque rear side ensures that no light is lost or can penetrate residual light entering from the rear. Thus the projection always appears evenly illuminated. The black edge on the sides additionally increases the contrast.