In Bright mode, the TW610Sti closely lived up to its manufacturer specifications by producing 2896 lumens of light. Definitely a bright image, that could perform well in almost any indoor setting, even if the rooms walls were 75 percent window. This mode, however, does reduce the life of the lamp by an estimated 1000 hours.
Movie Mode dropped the brightness levels down to 1551. This is comepletely normal, as the projector drops the brightness, to try and produce a blacker black in dark scenes. Srgb Mode dropped brightness to its lowest level, at 878. Blackboard Mode bumped up light output, producing 2092 lumens. Finally, Classroom Mode came in at 1233 lumens.