Taking this opporuntity to link to Charles Proteus Steinmetz[1]. Among the many, many things Steinmetz did, he invented the Metal Halide Lamp which was later refined for mass production decades later. This took the innovation of others less well-known to history[2]. So great example, bringing up the light bulb!
[1] https://en.wikipedia.org/wiki/Charles_Proteus_Steinmetz
[2] https://americanhistory.si.edu/lighting/20thcent/invent20.ht...