What is the difference between led lamps and energy-saving lamps_Does led lamps save electricity than energy-saving lamps?
1. LED lights
LED lights, light-emitting diodes are referred to as LEDs. Diodes made of compounds containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), etc. can radiate visible light when electrons and holes recombine, so they can be used to make light-emitting diodes. Used as indicator lights in circuits and instruments, or composed of text or digital displays. Gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and gallium nitride diodes emit blue light. Due to chemical properties, it can be divided into organic light emitting diode OLED and inorganic light emitting diode LED.
What are the advantages of LED lights:
1. Energy saving, the energy consumption of white LEDs is only 1/10 of incandescent lamps and 1/4 of energy-saving lamps;
2. Longevity, the lifespan can reach more than 100,000 hours, which can be described as "once and for all" for ordinary household lighting;
3. It can work at high speed. If the energy-saving lamps are frequently started or turned off, the filament will turn black and quickly break down;
What are the disadvantages of LED lights:
High starting cost, low efficiency of high-power LED, constant current drive (requires dedicated drive circuit). In contrast, all kinds of traditional lighting have certain drawbacks.
Second, energy-saving lamps
Energy-saving lamps, also known as energy-saving light bulbs, electronic light bulbs, compact fluorescent lamps and integrated fluorescent lamps, refer to lighting equipment that combines fluorescent lamps and ballasts (ballasts) into a whole. In 2008, the state launched the "green lighting" project, and urban and rural residents and enterprises enjoy a certain percentage of subsidies for using the energy-saving lamps of the winning enterprises. The promotion of energy-saving lamps is of great significance, however, the environmental hazards of waste energy-saving lamps have also attracted attention. By the end of October 2012, hundreds of millions of energy-saving lamps have been scrapped from the energy-saving promotion project, each of which can pollute 180 tons of water and soil. The disposal and recycling of waste energy-saving lamps has attracted attention. Despite this, people's demand for energy-saving lamps is still growing, especially in 2014, which has just arrived, and the demand is still increasing.
What are the advantages of energy-saving lamps:
1. Compact structure and small size.
2. High luminous efficiency of 60Lm/w, power saving more than 80%, energy saving.
3. Can directly replace incandescent bulbs.
4. Longer life, 6 to 10 times longer than incandescent lamps.
5. The inner wall of the lamp tube is coated with a protective film and the use of triple spiral filaments can greatly extend the service life.
What are the disadvantages of energy-saving lamps:
1. There is mercury pollution in the production process and after use and disposal. At present, Western countries attach great importance to mercury pollution. Chinese people are also more and more aware of the harm of mercury pollution
2. Because it is a glass product, it is easy to break, not easy to transport, and not easy to install
3. Its power consumption is still too large
4. Easy to damage, short lifespan, energy saving but not saving money is the best portrayal of it.
What is the difference between led lamps and energy-saving lamps
Energy-saving lamp is the abbreviation of CFL (Compact Fluorescent Lamp), which is mainly energy-saving compared with the original incandescent light bulb.
LED bulbs refer to bulbs that use LEDs as light sources, and their light efficiency is also very high. They are the current new type of bulbs and have a tendency to replace CFLs. In recent years, some lighting exhibitions have also basically displayed LED lights.
At present, the light efficiency of the two is slightly lower than that of CFL, and the general light efficiency of CFL is 50-65lm/W. The luminous efficiency of the LED itself is very high, most of which are currently between 100-130lm/W, but due to the lighting angle of the LED and other issues, the luminous efficiency of the whole lamp is about 65-80lm/W, and the difference between the two is not too big. , but the price of CFL and LED with the same luminous flux is generally about 2-4 times higher, the price difference is less when the power is small, and the difference is large when the power is large. The nominal lifespan is 6000-12000h, and the nominal lifespan of LEDs is 10000-20000h. These comparisons are only for some products exported to the European Union or North America. Due to the uneven quality of domestic sales, it is impossible to make a detailed assessment. However, the best lifespan is generally about the order of export to these regions (including the so-called international brands philips, osram, etc.).
As for the problem of vision damage, incandescent bulbs are better than CFLs, and CFLs are better than LEDs. In particular, most of the LED lamps currently sold in China do not pay attention to the impact of LEDs on vision, and deliberately reduce the luminous efficiency loss between the LED light source and the whole lamp, so that the whole lamp has a higher luminous efficiency. For data such as luminous flux, a single-stage PFC circuit (with high ripple and easy eyestrain) is used to meet my country's first-class standards for lamps and the price requirements of the last stream.
Are LED lamps more energy efficient than energy-saving lamps?
First of all, it must be emphasized that LED bulbs save electricity than energy-saving lamps. Most people know or have heard of it, but many people still have doubts about it. After all, they have not calculated where the electricity is saved. .
Due to the different light-emitting principles of energy-saving lamps and LEDs, their luminous efficiency is different. The luminous efficiency of halogen powder energy-saving lamps is only 30-40lm/W, and the luminous efficiency of three-color energy-saving lamps is higher than that of halogen powder energy-saving lamps, about 40. -60lm/W (different brands of products have different quality and different luminous efficiency, Philips energy-saving lighting effect is about 60lm/W). However, the luminous efficiency of LED is much higher than that of energy-saving lamps, and the current technical level has generally reached 90-100lm/W. Therefore, in essence, the brightness generated by 1W LED needs at least about 2W energy-saving lamps to achieve similar brightness. However, the actual brightness is affected by many factors. The most direct factor is temperature. Light decay, energy-saving lamps will produce bright heat, and LED is a cold light source, the heat generated is much smaller than energy-saving lamps, so LED light decay is smaller than energy-saving lamps;
There are still many buyers. Users know that LED is more energy-saving than energy-saving lamps, but they feel that the price of LED is more expensive than that of energy-saving lamps. of energy-saving lamps. Through data analysis, the amount of electricity spent in the process of using energy-saving lamps far exceeds the amount saved when purchasing energy-saving lamps. Therefore, it is recommended that you use LED lamps as much as possible, especially for enterprise users who use a lot of them.
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