There are three factors that build a room. One is the room itself, second is door, and the third is window. As one of the factors that build room, window has a function as the way for light to fulfil the room. The outside light from sun can be used naturally, and it needs window. Lamp, as we know can make a light in the room, is not the main factor that should fulfil the need of light in the room. Lamp is just a support tool if the sun light is not enough. If we use lamp as the main necessity, there would be a lot of energy that is wasted.
There can be a possibility that the light that enters the room is too shiny. It would be great if there is something that can control it. Window coverings could be the answer. There should be something that blocks some of the light to enter the room. It could be window blinds or window shades. For window blinds, you can choose between the horizontal blinds or the vertical blinds. The blinds could be opened or closed as you want to control the light from outside. By using this tool, you can easily manage the light at the day of your works.