The brightness really depends on the projected image size. Smaller projections are easily visible in a well lit room (think of using a laserpointer in a bright room, easy to see even from far away.) The larger the image size, the darker the room needs to be.
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The brightness really depends on the projected image size. Smaller projections are easily visible in a well lit room (think of using a laserpointer in a bright room, easy to see even from far away.) The larger the image size, the darker the room needs to be.