Latimer devised a way of encasing the filament within an cardboard envelope which prevented the carbon from breaking and thereby provided a much longer life to the bulb and hence made the bulbs less expensive and more efficient. This enabled electric lighting to be installed within homes and throughout streets.
Latimer’s abilities in electric lighting became well known and soon he was sought after to continue to improve on incandescent lighting as well as arc lighting. Eventually, as more major cities began wiring their streets for electric lighting, Latimer was dispatched to lead the planning team. He helped to install the first electric plants in Philadelphia, New York City and Montreal and oversaw the installation of lighting in railroad stations, government building and major thoroughfares in Canada, New England and London.
Lewis Latimer is considered one of the 10 most important Black inventors of all time, not only for the sheer number of inventions created and patents secured but also for the magnitude of importance for his most famous discovery. Latimer was born on September 4, 1848 in Chelsea, Massachusetts,died on December 11, 1928 and left behind a legacy of achievement and leadership that much of the world owes thanks.