Changhui Lighting: LED FAQs (1)

Q: 1. What is LED? A: Light Emitting Diodes Q: 2. What is an LED? Answer: When the voltage is 1 volt, the light emitted by a semiconductor tube is an LED. Question: 3. What facilities can LEDs be used for? A: LEDs can have a service life of more than 30 years when used in indicator lights and alphanumeric displays. With the development of modern technology, LED can be used in a wider range of lighting facilities. LEDs are widely used in facilities that require special lighting. Most traffic lights and signals, for example, now use LEDs with red, green or blue light. They are also used in characteristic buildings that require high-brightness lighting. Question: 4. Can LED be used for general lighting purposes? A: Yes. Although initial attempts at general lighting have not worked well because of their inability to meet lumen per watt output requirements, and due to the limited color limitations of early LED technology, modern LEDs can be adapted for everyday use. on lighting facilities. 5. How are LED street lamps different from traditional light sources, such as incandescent lamps, fluorescent lamps and xenon lamps? A: Unlike other light sources, LEDs convert invisible electricity directly into visible light and do not generate heat or other forms of radiation, such as ultraviolet light. The light radiation angle of traditional light sources even exceeds 360 degrees. The light radiation range of LED is a fixed arc. The use of LEDs is an advantage when some installations and lighting designs need to be fixed and poses a challenge to many of today's light sources. Q: 6. What are the advantages of LED and the challenges of applying LED technology in general lighting? A: LED has the advantages of high efficiency and durability. These advantages allow us to save energy, save money, keep our costs under control and extend the life of our lamps. Since the light radiation range of the LED is a fixed arc, there is no light loss caused by absorption by the lighting device or light pollution caused by the light radiation angle radiating in all directions. On the other hand, when LED is used in the lighting industry, it brings challenges to its fixed arc radiation angle. Well-designed luminaires that use LEDs as light sources can ensure that the light is evenly distributed over the irradiated area.