Ceiling fixtures were earlier used to hold the bulb only providing light in the directed direction. The fixtures are available in various sizes , shapes and ranges and were chosen depending on the amount of light required in a room. But now the definition of the light fixtures is changed as they are considered an item which enhances the decor of the house or the area where it is fitted.
Always choose the Ceiling light fixture which increases the efficiency of the bulbs attached to it. The looks of the fixtures matters, but it will be unwise to only select a fixture only because of the looks. Consider the efficient specification of any particular light fixture chosen by you .Some fixtures are always meant for particular style of bulbs so also check that the criteria while purchasing it.
The overall look and style of the room and the space where it need to be fitted so that it complements with the interiors of the room also. A huge chandelier in a small room or a small chandelier in a big room can create a mess in the looks, so choose after considering all these points in your mind. While fixing the fixtures always check the height of the fixtures from the floor, according to which it should be chosen.