There is no rule such that the bathroom lighting should be provided only in the ceiling or is better if it is provided at the sides or on top of the mirror. One has to fix the bathroom lightings according to one's taste and the mood that he or she wants to bring into the room. Even for a small bathroom, people, these days, go for two or more lighting fixtures. Thus, lighting is the most important factor to be considered in any modern bathrooms.
So, it is imperative that proper planning must be done in selecting bathroom accessories and bathroom fixtures. Of all the types and varieties of bathroom accessories, bathroom lighting fixtures are considered to be most important fixture in a modern bathroom.
Now consider your bathroom space. You can try drawing the layout on a piece of paper. Indicate the natural light sources, such as your window and start putting ideas on the paper. Consider the various kinds of lamps available today, and where you can put them in the room. Have a main source installed. You can use this at night when natural daylight is absent. Next would be your secondary source, for your accent lighting. These are the bulbs that you can also use during the day to tie the lighting of the room together.
Plan bathroom lighting ; Your bathroom should have a window somewhere, and this can be your natural source of lighting. Use that as your starting place to start designing the lighting in the bathroom. During daytime, choose lighting that will compliment natural light coming from the window. You might want to diffuse some of that hard natural lighting glare by using screens or frosted glasses. This will allow soft light to enter into the bathroom.
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