What is an led light?
LED entered the field of lighting, which triggered a new revolution in the field of lighting technology. Because LEDs with different shapes, quantities and sizes can be arranged and combined in different ways, and the LED structures in different LED replacement lamps can be different, various LED lighting products (such as LED decorative lamps, LED street lamps, LED projection lamps, embedded LED lamps, LED tunnel lamps, LED desk lamps and traffic lights) and traditional light source substitutes (such as LED replacing incandescent lamps and MR 18) have appeared in the lighting field. With the continuous progress of LED technology and the further improvement of people's pursuit of lighting sensory vision, people have more specific requirements for the design and performance of LED lamps, which puts forward higher requirements for lamp manufacturers and lighting product designers.
Advantages of LED lamp
1, high efficiency and energy saving: only a few kwh of electricity is consumed in one thousand hours (ordinary 60W incandescent lamp consumes 17 hours 1 kwh, and ordinary 10W energy-saving lamp consumes 100 hours 1 kwh).
2. Ultra-long life: the semiconductor chip emits light, has no filament, no glass bubbles, is not afraid of vibration and is not easy to break, and its life can reach 50,000 hours (the life of ordinary incandescent lamps is only/kloc-0.000 hours, and that of ordinary energy-saving lamps is only 8,000 hours).
3. Health: Light health lamp does not contain ultraviolet rays and infrared rays, and does not produce radiation (ordinary lamp contains ultraviolet rays and infrared rays).
4. Environmental protection: it does not contain harmful elements such as mercury and xenon, which is conducive to recycling and will not produce electromagnetic interference (ordinary lamps contain elements such as mercury and lead, and electronic ballasts in energy-saving lamps will produce electromagnetic interference).
5. Vision protection: DC drive, no stroboscopic (ordinary lamps are driven by AC, so stroboscopic is inevitable).
6. High luminous efficiency: low calorific value, 90% of electric energy is converted into visible light (80% of electric energy of ordinary incandescent lamps is converted into heat energy, and only 20% of electric energy is converted into light energy).
7. High safety factor: the required voltage and current are small, and the heating is small, which will not cause potential safety hazards. It is used in dangerous places, such as mines.
Application occasions of LED bulbs
Visible light LED bulb: Low light LED is widely used in various electronic instruments and equipment, which can be used as power indicator, level indicator or micro light source. Infrared light emitting tubes are often used as remote controllers for televisions, video recorders, etc. LDE bulbs are also mostly used for automobile light distribution lamps (instrument indicator backlight display, front and rear turn signals, brake indicator lamps, backup lamps, fog lamps, reading lamps and decorative lamps) and decorative lamps of motorcycles (automobile lights change color, fog lamps, reading lamps and decorative lamps), such as running water lamps; Most of the indicator lights on motorcycles and electric vehicles also use LED bulbs. Strong light LED is mainly used for taillights of automobiles, electric vehicles and motorcycles.
Electric car headlights, as well as bridges, building outline hooks, square lighting, road lighting, buildings, rainbow doors, stages, hotels, various lighting billboards, outdoor landscape lights, indoor lighting and other outdoor lighting projects have also begun to be used. IrDA, the application surface is mainly communication. Energy-saving lamps are facing the elimination of LED lamps as the mainstream.
An LED lamp usually includes three parts: a bulb, a shell and a driver. Take an LED spotlight with rated power of 3W as an example. It consists of three light bulbs, 1 shell and 1 driver. Based on the production cost of mid-range products, the bulb cost is 2 yuan, the shell 3 yuan, the driver 2.8 yuan, the labor cost 1 yuan, the packaging cost is 0.5 yuan, and other costs 1 yuan. So, the total cost of this lamp is 10.3 yuan. Coupled with the profit that the merchants want to earn, the warehouse rent and the transportation cost, the price of this lamp should be at least above that of 20 yuan. Therefore, the quality of those LED lamps whose price is only below 10 yuan can be imagined.
In addition, some businesses dare to sell very cheap LED lights because they use inferior materials. Take the lamp bead as an example. 1 inferior 1W The lowest price of domestic lamp beads in the market is only 0.2 yuan. The gold wire in this lamp bead is replaced by copper wire, and other materials are mostly inferior products. For these, it is difficult for consumers to distinguish only from the appearance of the lamp. Therefore, he reminded consumers not to buy low-priced LED lights to avoid problems in use and harm to themselves and their families.
Therefore, he reminded consumers not to buy low-priced LED lights to avoid problems in use and harm to themselves and their families.