Barco R9002380 Owner's Manual page 12

Safety Instructions
The use of controlled ambient lighting, such as incandescent spot light or a dimmer, is recommended for proper room illumination.
Where possible, care should also be taken to ensure that the floors and walls of the room in which the projector is to be installed are
non-reflecting, dark surfaces. Brighter surfaces will tend to reflect and diffuse the ambient light and hence reduce the contrast of
the projected image on the screen.
1-4 5976066 BARCOCINE 7 011299