- Industrial lighting technology plays a leading role and supporting role in the IT and BIO revolution (emphasis) LED (4 photos) - LED is the new light of the 21st century, its application and research and rapid development - LED technology in Korea and East Asia leads the world market (70% of the world market) - The huge wave of LED technology will be the second revolution in the history of human lighting - In the next five years, LED technology will move towards the replacement of white heat lamps, fluorescent lamps and halogen lamps. - In 2010, LED lights accounted for 16% of the world's lighting market. Lighting memorabilia —1879 Edison invents the electric light —1959 Halogen lamp comes out —1961 High pressure sodium lamp came out —1962 Metal halide lamp —1969 The first LED light (red) —1976 Green LED Light —1983 fluorescent light comes out —1993 Blue LED Light —1999 white LED light —2000 LED for indoor lighting The development of LED is the second revolution since the development of white heat lighting in 120 years. - At the beginning of the 21st century, LEDs developed through the wonderful encounter between nature, humans and science will become the innovation of the light world, the green technology light revolution essential to mankind. —LED will be a renewed light revolution since Edison invented the light bulb. LED energy-saving lighting fixtures (19 photos) The current status of LED bulbs is mainly based on high-power white LED single lamps. At present, the world's top three LED lighting manufacturers are guaranteed for three years, large particles per watt greater than or equal to 100 lumens, and small particles per watt greater than or equal to 110 lumens. . Light decay large particles are less than 3% per year, and light decay small particles are less than 3% per year. [3] LED solar street lights, LED flood lights, LED ceiling lights, and LED fluorescent lamps are already in mass production. For example, a 10 watt LED fluorescent lamp can replace a 40 watt ordinary fluorescent lamp or an energy saving lamp. At present, LED energy-saving lamps have entered the ordinary people's home, but they are not yet popular!
Non-tapping screws are machine Screw, the pieceworker to be fastened must be tapped with taps in the screw hole in advance to match the screw threads.
The difference between tooth screws and other screws depends on whether they can be used together with nuts. Tooth screws can be used with nuts. And relative to the screws of other teeth, there are self-tapping screws. The nut of this kind of screw has no bow teeth. As for the standard teeth and fine teeth are only different pitch, it is the nut of the machine screw
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