Istanbul Esenler Bus Terminal is a center of transportation through which one could enter in Istanbul, the worldwide famous city of Turkey, one of the most significant cities which has hosted many civilizations throughout its history. It is the biggest bus terminal of Turkey and the 3^rd biggest bus terminal of Europe. Approximately 1900 projectors and armatures and outdoor lighting armatures were used in the lighting improvement works performed for further safety and 400 waterproof armatures were used on the walking paths and in front of the stores. Color hotness of 4000K and 6500K was preferred depending on the place of use of the armatures used.