Bathroom mirror lights are extremely important. It is the one place in the whole house where you need to get your lighting correct. Every morning this is the place where you get ready for the day so having a good mirror light is crucial for you to be able to see what needs to be done, whether it is clipping a nose hair or flossing ones teeth. All these important activities take place in front of the mirror and as such having good well placed bathroom mirror lights is very important.
On the other hand, you must understand that people like to have a calming environment in their bathroom, it is their santuary away from the troubles of the world, and therefore you do not want to go to extreme measures and introduce sharp bright lighting in the bathroom. This can often be very harsh and make people look a lot worse in the mirror than is actually the reality and therefore cause people to feel worse about themselves. So finding a nice balance is the key.
Of course, while these are just two very basic concerns, it is always a good idea to look at the whole range of products that are available on the market, and there are almost an endless supply. There are of course the more expensive brands, which are very well known, but there are also a host of mid range lighting systems for the bathroom that punch far above their weight. It is important that you check the voltage of all the bulbs to see just how bright it is going to be, and then of course you are going to need to test it in action. This can usually be done in a hardware store or on the factory floor. Beware of purchasing bathroom mirror lights from the lighting section of a hardware store, as often the whole area is extremely bright and this can distort the actually intensity of the light that is being emitted.