Owing to similar fact improving number of enterprises, which give different commodities in the area of lightning step up their efforts so that their commodities would use considerably less energy than in the past. Therefore, the expenses of their exploitation are in general thought to be substantially reduced, which is also referred to the fact that they are these days far more durable. Another reason why above mentioned area of industry has significantly developed throughout recent years is connected with the fact that the demand on similar goods is systematically improving. It is implied by the fact that not only new buildings are grounded, but also they are important in cities in the night in order to improve the safety of the citizens and inter alia drivers of the vehicles. The more lights are available in a city, the more we are likely to avoid situations, in which we would participate in diverse car accidents. Nonetheless, raise of the light bulbs in a city is referred to greater costs rate, which indicates that it is important to find a propare balance in the area of lightning in terms of people, who are responsible for government of every city. Owing to such an attitude they are likely to better care about the structure of a budget.