After all these years, LEDs vindicate Edison

Thomas Edison may yet have the last laugh more than a century after the so-called War of the Currents, a war won by George Westinghouse with help from Nikola Tesla over the team of Edison and J.P. Morgan, the money behind the Edison General Electric Company. Edison lost the bottom-line argument between the adoption of Westinghouse’s alternating current (AC) and Edison’s direct current (DC) as the standard for transmitting power in a newly electrified United States.

Alternating current proved to be more efficient at transmitting power over great distances. Yet direct current is what powers our computers, hybrid cars and the power plants for telecommunications. And new light-emitting diode (LED) technology will require buildings that are equipped with DC systems for peak performance.

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