A:Answer Hello Aboveavg. Yes, the LS300 projector can be viewed in a room with lights on. However, color brightness and white brightness can vary based on usage conditions. The projector does offer different Color Modes to provide optimum brightness, contrast, and color for a variety of viewing environments and image types. We recommend choosing the "Dynamic" mode as this offers better image contrast for bright rooms. Regards, Kevin - The Epson Team.