Thanks for the question! When you are lighting a room with indirect lighting, then it is just a matter of what product you choose. We have seen many rooms solely lit by indirect lighting, though they can vary pretty significantly on how bright they are. There are many variables like geometry, amount of strip, luminous flux and even wall color that can affect this. I would recommend a trial and error process if you are unfamiliar with using our products. Hope this helps! Please feel free to give us a call if you would like to discuss this further: 888-880-1880