What is the difference between 20 and 200 LED luminaires?
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What is the difference between one, 20 and 200 LED lamps?
Difference 1: Different brands
Different brands of LED lamps, there is a big gap in quality, small workshops can also be done, large factories can also do, different materials, different processes, the appearance can not see the difference, the internal differences are still very large, The cost can be a world apart.
Difference 2: different channels
Different channels, the price is definitely different, the lighting store, the cost of renting electricity and even the cost of transportation and storage are counted, naturally will sell high prices, the online can be directly shipped directly from the factory, eliminating many intermediate links, from the cost Can be well controlled, the price is definitely a lot worse. There are also some city group purchases, businesses directly to the scene, to get the lowest discount, the price is also quite high.
Difference three: LED performance is different
(1) Brightness
The brightness of the LEDs is different and the price is different. The brightness of LED bulbs is expressed in lumens. The higher the lumens, the brighter the lamp and the more expensive it is.
(2) Antistatic ability
LEDs with strong antistatic properties have a long life and are therefore expensive. LEDs with an antistatic greater than 700V are usually used for LED lighting.
(3) Wavelength
LEDs with the same wavelength have the same color. If the color is the same, the price is high. It is difficult for manufacturers without LED spectrophotometers to produce pure color products.
(4) Leakage current
An LED is a unidirectionally conductive illuminator, and if there is a reverse current, it is called leakage. LEDs with large leakage current have short life and low price, and the price is high.
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(5) Angle of illumination
LEDs with different uses have different illumination angles. Special lighting angle, the price is higher. Such as full diffusing angle, full light distribution, 360 ° lighting, etc., the price is higher.
(6) Life expectancy
The key to different qualities is life, and life is determined by light decay. Low light decay, long life, long life and high price. The average life of LED lamps is higher than that of traditional lamps.
(7) LED chip
The illuminator of the LED is a chip, and the price of the chip varies greatly. The chips in Japan and the United States are more expensive, and the price of LED chips from Taiwanese and Chinese manufacturers is lower than that of Japan and the United States. Most of the price of LED lights is concentrated on the chip, and the chip is equivalent to the heart of LED lamps.
(8) chip power size
The power price of a single chip is different. The quality of a high-power chip LED is better than that of a small chip, and the price is proportional to the chip power. However, the integrated type cannot be similar, and the integrated type is composed of a plurality of chips of 1W or less, which is not as stable as a single one.
Second, how to distinguish the advantages and disadvantages of LED lamps?
1. Look at the overall “power factor of the luminaire”: the power factor is low, indicating that the driving power supply and circuit design used are not good, which will greatly reduce the service life of the luminaire. The power factor is low, and the life of the lamp using the lamp bead is not long. .
2, look at "lighting conditions for lighting - materials, structure": LED lighting is also very important, the same power factor lamps and the same quality of the lamp beads, if the heat dissipation conditions are not good, the lamp beads work at high temperatures, the light fade will be very Large, the life of the lamp will be reduced.
3, look at "light quality": the quality of the lamp is determined by the chip quality and packaging technology.
4, look at the driving power used by the lighting, the service life of the power supply is relatively short compared to other parts of the lamp, the life of the power supply affects the overall life of the lamp, the theoretical life of the lamp bead is 50,000-100,000 hours, while the power supply The life span is 0.2-3 million hours, and the design and material selection of the power supply will determine the service life of the power supply.
5, look at the light effect: the same lamp power, the higher the light efficiency, the higher the brightness, the same lighting brightness, the smaller the power consumption, the more energy-saving.
6, look at the power efficiency, the higher the power efficiency, the higher, the higher the power consumption of the power supply itself, the greater the output power.
7. Is it to see if it meets safety standards? China's LED lighting safety standards have been introduced, please select LED lamps according to the national safety standards.
8, look at the work of the exterior, done fine, perfect, style like the first element, of course, the big brand seems more reassuring, but do not exclude other other affordable brands that work well, after all, is a technology is very Mature and popular lights only.
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The price of LED lighting fixtures generally shows a downward trend, but consumers of LED lighting products with too low prices must pay more attention to avoid the fraud of unscrupulous merchants. LED lamps with too low prices are more likely to be manufactured with inferior materials and rough processes. Not only are they not guaranteed in terms of safety, but they are also doubtful in terms of product quality. Therefore, when consumers choose LED lights, they must see the product parameters and product quality, and don't want to be cheap.