It has always been bright minds that deal with the subject of light. Even though the invention is attributed to the light bulb Thomas Edison, scientists and inventors were already researching the use of electric light in the early 19th century. Although the first patents for incandescent lamps were awarded already in 1841, Edison enabled only after 1880 their practical use and mass production. We at EGLO have found a place in the history of light that has been successfully growing for about 50 years.