The different varieties of lighting fixtures include ceiling fixtures, side wall mounting fixtures, etc can be chosen as per one's taste and requirement for his or her bathroom. Also depending on the size of the bathroom, one can choose from a single light fixture to a couple or more lighting fixtures.
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.
There are smaller sizes of bathroom lighting fixtures that are easily available these days, which not only requires less space but also opens up a wide array of possibilities of bathroom lighting. It is always better to use a mix of ceiling mount as well as wall sconces type of fixtures to light up a larger bathroom. Most bathrooms there days are more spacious as well as luxurious. To light up these types of bathrooms is a task that one has to carefully undertake to produce the desired results.
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.