Owing to similar fact more and more enterprises, which provide miscellaneous products in the field of lightning intensify their efforts so that their products would use substantially less energy than in the past. That’s the reason why, the expenses of their exploitation are mostly thought to be significantly reduced, which is also related to the fact that they are these days substantially more durable. Another reason why this area of industry has considerably developed throughout recent years is referred to the fact that the demand on such products is regularly increasing. It is implied by the fact that not only new buildings are established, but also they are required in cities in the night in order to better care about the safety of the citizens and inter alia drivers of the automobiles. The more lights are available in a city, the more we are likely to avoid situations, in which we would participate in different car accidents. However, increase of the light bulbs in a city is connected with greater costs rate, which indicates that it is important to find an appropriate balance in the field of lightning in terms of people, who are responsible for government of every city. Owing to this kind attitude they are likely to better care about the structure of a budget.