SESCO Lighting's Calculations Division (CALCS) is one of the many reasons why SESCO's services as a lighting manufacturers' representative are superior to those of our competitors. CALCS consists of a team of world-class technical experts specifically charged with the task of providing SESCO clients with precise photometric calculations and professional digital renderings in a timely and satisfactory fashion. SESCO invests over $500,000 each year to ensure that CALCS' resources are continuously available to our customers and clients because we believe they, as the people responsible for our success, deserve the best --always.