The atmosphere and tone of an office are crucial, as they can either impede or encourage your productivity. Lighting is essential. It not only allows you to complete your work accurately, but lighting can make the whole room seem more cheerful and energised. An office that lacks a window can too easily become dreary and feel like a dungeon. Such an office needs to have an aggressive lighting scheme which makes a maximum effort to lighten and brighten the space.
Paint the walls a colour that will add brightness, like warm white, cream, or light yellow. Make the walls as bright as they can be. Even if the walls are already a medium-bright colour, like mauve or light blue, you must lighten them further.
Hang a ceiling lamp from the centre of the ceiling. This is your base light, which will cast a moderate amount of light all around the room.
If possible, place a lamp in each of the four corners of the room. Do this by purchasing floor lamps and very small accent tables and table lamps. For some very small offices, one of the corners is often impossible to place a lamp in because the door swings open onto it. In that case, shoot for three out of four corners.
Purchase an artificial sunlight desk lamp for your desk. This is the most crucial place in the office, as this is where you'll be spending most of your time. An artificial sunlight lamp will make you feel like warm sunlight is pouring on you as you work.
Hang a mirror on two on the walls to reflect existing light. The mirrors will also give the room the appearance of being larger than it actually is.