The study of electric lighting began in the late 1700s, marking the start of a new era in human illumination. By the early 1800s, British inventor H. David introduced carbon arc lamps, which were among the first practical electric light sources. In 1879, Thomas Edison from the United States developed a long-lasting carbon filament incandescent lamp, making electric lighting widely accessible and revolutionizing how people lived and worked. A major advancement came in 1907 when tungsten wire was used as the filament in incandescent lamps, significantly improving their performance. Then, in 1912, American scientist Irving Langmuir and his team conducted research on gas-filled incandescent lamps, increasing both their efficiency and lifespan. This innovation expanded the use of incandescent lighting across many fields. In the early 1930s, low-pressure sodium lamps were successfully developed, offering better energy efficiency for street lighting. By 1938, fluorescent lamps emerged in Europe and the U.S., with luminous efficiency and life span three times greater than that of traditional incandescent bulbs. This marked a major breakthrough in electric lighting technology. In the 1940s, high-pressure mercury lamps became practical, followed by halogen tungsten lamps in the late 1950s. These lamps were smaller, lighter, and had slower light decay, bringing a significant leap forward in thermal radiation lighting. The 1960s saw the development of metal halide and high-pressure sodium lamps, which offered even higher efficiency than mercury lamps. By the 1980s, compact fluorescent lamps, low-power high-pressure sodium lamps, and low-power metal halide lamps appeared, leading to a new era of smaller, more energy-efficient, and electronically controlled lighting solutions. The invention and continuous improvement of electric light sources have greatly contributed to the development of electrical devices. Electric lighting is efficient, reliable, easy to control, and safe. It also allows for accurate measurement of energy consumption through meters. Because of these advantages, it has been widely adopted for over a century and has become an essential part of daily life. Beyond homes, it plays a crucial role in industries, agriculture, transportation, national defense, and scientific research. Globally, lighting accounts for about 10% to 20% of total electricity consumption. In China, lighting uses around 10% of the country’s total power generation. As modernization accelerates, lighting energy demand continues to rise, but the growth rate of power supply hasn’t kept up. This has made the development and promotion of energy-saving lighting technologies increasingly important. With growing environmental awareness and energy concerns, the future of electric lighting lies in sustainability, efficiency, and smart technology. End Mill For Graphite Machining End Mill For Graphite Machining,Carbide End Mills, Sdc Coating Mill,Roughing Milling Cutter JIANGYIN GOLD STAR INDUSTRY CO.,LTD , https://www.jygoldstarindustry.com