LED lighting fixtures: A new chapter in future lighting
Publish Time: 2025-02-13
LED lighting fixtures, that is, light-emitting diode lighting fixtures, as a semiconductor solid-state light-emitting device, are gradually changing our lighting world. It uses solid semiconductor chips as luminescent materials, and releases excess energy through carrier recombination in the semiconductor to cause photon emission, thereby directly emitting red, yellow, blue, green, cyan, orange, purple, white and other colors of light. With the advancement of science and technology, LED lighting fixtures are becoming the mainstream products in the future lighting field with their unique advantages.
1. Working principle of LED lighting fixtures
The luminescence mechanism of LED is mainly determined by its special composition structure. LED is mainly composed of PN junction chip, electrode and optical system. When forward bias is applied to the electrode, electrons and holes are injected into the P region and N region respectively. When the unbalanced minority carriers and majority carriers recombine, the excess energy will be converted into light energy in the form of radiated photons. This process includes three parts: carrier injection under forward bias, recombination radiation and light energy transmission.
2. Significant advantages of LED lighting fixtures
High light efficiency: The spectrum of LED is almost entirely concentrated in the visible light frequency, and the efficiency can reach 80%-90%, while the visible light efficiency of incandescent lamps with similar light efficiency is only 10%-20%.
High light quality: There is no ultraviolet and infrared in the LED spectrum, no heat and radiation, and it is a typical green lighting source.
Low energy consumption: The power of LED monomers is generally 0.05-1W, and different lighting needs can be met through clustering. The power consumption is only 1/8-1/10 of that of ordinary incandescent lamps.
Long life: The average life of LED can reach more than 50,000 hours, which is more than 50 times that of traditional tungsten filament lamps. The standard life when the luminous flux decays to 70% is 100,000 hours.
Reliable and durable: LED has no easily damaged parts such as tungsten filaments and glass shells, and the abnormal scrap rate is very small, and the maintenance cost is low.
Flexible application: LED is small in size and can be flat packaged. It is easy to develop into thin and short products, and make specific application products in various forms of points, lines, and surfaces.
Safety and environmental protection: The unit working voltage of LED is between 1.5-5V, and the working current is between 20-70mA, which is safe and reliable. At the same time, the waste is recyclable, does not contain harmful substances such as mercury, and does not pollute the environment.
3. Diversified applications of LED lighting fixtures
The application range of LED lighting fixtures is very wide, from home lighting to commercial lighting, from indoor lighting to outdoor lighting, almost everywhere. In home lighting, LED ceiling lamps, downlights, spotlights, etc. have become mainstream products. In commercial lighting, LED floodlights, wall washers, linear lights, etc. are widely used in shopping malls, hotels, office buildings and other places. In addition, outdoor lighting products such as LED street lights and tunnel lights are also favored for their high efficiency, energy saving and environmental protection.
4. Market prospects of LED lighting fixtures
With the increasing global attention to energy conservation, emission reduction and environmental protection, the market prospects of LED lighting fixtures are very broad. On the one hand, the support and subsidies of government policies will promote the rapid development of the LED lighting industry; on the other hand, consumers' demand for energy-saving, environmentally friendly and intelligent lighting products will continue to increase. In addition, with the continuous advancement of LED technology and the reduction of costs, the price of LED lighting fixtures will become more affordable, further expanding its market share.
5. Brands and selection of LED lighting fixtures
At present, there are many brands of LED lighting fixtures on the market, such as well-known domestic brands such as NVC Lighting, OPPLE Lighting, Foshan Lighting, TCL Lighting, and international brands such as OSRAM and Cree. When choosing, consumers should pay attention to the performance indicators of the product such as light efficiency, color temperature, color rendering index, as well as factors such as brand popularity and after-sales service. At the same time, choose the appropriate type and power of lamps according to specific usage scenarios and needs.
LED lighting fixtures are gradually becoming the mainstream products in the future lighting field with their significant advantages such as high efficiency, energy saving, environmental protection, reliability and durability. With the continuous advancement of technology and the continuous expansion of the market, LED lighting fixtures will bring a more comfortable, intelligent and environmentally friendly lighting experience to our lives.
