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.
Ambient lighting is another part of light layering. These are usually your typical uplights. They direct light upwards to allow the light to bounce off the ceiling and into the rest of the room. It softens the light and creates a good glow. Next is accent lighting. This is the kind of lighting that will give an additional spark to the lighting of the room. You can choose to dim it or increase the glare depending on your needs.
All the bathrooms, be it small, medium or larger ones, requires general lighting, which provides illumination to the entire room without any shadows and provides proper lighting to the floor of the bathroom. This type of lighting is often derived from the recessed ceiling bathroom fixtures that not only provide the light but also creates lesser glares when compared to the wall hanging fixtures. Natural light that is let through the windows which are made of frosted glass or glass blocks will also provide ambient lighting to the bathroom as well as privacy.
Safety Factors: Last but not the least, keep safety factors in your mind when setting up your bathroom lighting fixtures. Hire a qualified electrical contractor to do the particular installing and always use fixtures and lights particularly intended for use in wet areas. Place lighting fixtures at least 6 feet away from the bathtub or shower.
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bathroom mirror lights
bathroom vanity lights