How the need for Artificial light in our time present in the form of photography
in 1939 the first fluorescent lights were available in the New York world fair. In the years following fluorescent lights were used in all imaginable forms up to hundreds of offices of lighting even photograph studies due to his continuous emission of light and energy low cost. But he maintained the difficult with the range of colors that are displayed when it is in use. In the years simple changes took place around matches become extinct a period length of life and provide a more coherent performance of gas.