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.
Spot lighting such as that offered from recessed ceiling lights, usually LED or halogen, can look incredibly stylish, and helps focus more light where you need it. But for lighting near bathroom mirrors a soft, diffused effect can work extremely well, giving you a more even light.
Utilizing mirrors is yet another good idea, as mirrors reflect the light and can give an impact of a larger space. You can use a wall-mounted mirror as a centerpiece in your bathroom. You may selected from numerous mirrors to suit the decor of your bathroom and your character. You can also want to get a defogger. Defoggers are frequently economical and most often don't waste too much power.
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.