For a lot of people asked every bigger city is known to have its unique climate. Especially in the evening, when the lights are turned on plenty people enjoy going for a walk. The effect can be at present even intensified owing to the fact that more and more of such solutions like led street lights have been implemented. The most important reason why more and more mayors of the cities decided to introduce them is that they can be even turned on for the whole night and be referred to considerably lower use of the energy.