LED or Light Emitting Diode is a solid light source. When a forward voltage is applied across the LED, minority carriers and majority carriers in the semiconductor recombine, and the excess energy released will cause photon emission. Different materials can be used to make LEDs with different colors. As a new light source, in recent years, major companies and research institutions have been studying LEDs, which has greatly improved their light efficiency. The joint venture between Philips and Agilent has currently developed and produced white LEDs with a light efficiency of 171m / W. Has reached the level of incandescent lamps.
Compared with incandescent lamps, LEDs have many advantages in performance, see the table below:
Table 1 Performance comparison of incandescent lamp and white LED
With the further deepening of LED research, its light efficiency will be further improved, and its cost will be further reduced. In the near future, LED will replace incandescent lamps and even fluorescent lamps and develop into a major lighting source in the 21st century. trend.
New light sources call for new electronic ballasts. Philips Lighting Electronics has been working on the development of new LEDs. At the same time, it has started the research of LED driver circuits in major development centers around the world in recent years. status.
In addition, although LED lamps are not as bright as incandescent lamps containing xenon or halogen, and three or four LEDs put together, the brightness produced is 10-20 times the life of ordinary batteries, so it is widely used in the automotive industry and traffic lights , Display and other fields.
Compared to incandescent lamps, LEDs are less susceptible to damage in the event of a drop or impact. They can continue to emit light for 100,000 hours, while traditional incandescent lamps can only last a few hundred hours. Based on these advantages, LED has been favored by cyclists and campers, because they can buy 1-20 LEDs for only 10-100 US dollars, and it is convenient to carry around.
What needs our special attention: The real potential of light-emitting diodes lies in the application of digital electronics. As diodes, they are closer to the design of computer Pentium processor chips than incandescent lamps invented by Thomas Edison in the 19th century. LED is particularly suitable for photoelectric technology, because incandescent lamps need to consume a lot of energy to meet the temperature requirements, while LEDs are brighter, faster, more efficient, more reliable, and the colors achieve the goal more purely.
Led Panel Light,Led Flat Panel Ceiling Light, Flat Panel Ceiling Light, 50w Led Ceiling Lights
Shenzhen Dianjiang Engineering Co. LTD , https://www.isourceled.com