It means that there is no more need to keep rooms limited to a certain environment all the time. In this paper, the way how adjustable lighting fixtures contribute to changing environments depending on what the owner does – prepares food, relaxes, works or sleeps – will be discussed. The importance of choosing proper lighting according to the purpose of a room instead of buying the brightest one will be explained in this paper. Besides, there are some other useful factors to consider in this regard, including bathroom ones.