How to distinguish low-quality LED street light
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Update time : 2022-10-15 08:35:38
At present, the quality of LED street lamps on the market is mixed, and the price of lamps with the same power is several times different. Whether the price is high or the quality is worrying, let me analyze the LED street lamps with extremely cheap prices on the market, so that you can buy qualified lamps with high quality and low price, and avoid worries in the future.
As the saying goes, a penny is worth a penny. The price is extremely cheap, and the cost is not high. The best you can buy is not as good as the best you can sell. No matter how cheap it is, you will earn money, and no one will do a loss business. The result is that the more lamps are made, the lower the price is, but the quality cannot be guaranteed. There are a few points that let you know the secrets of low price lamps.
First of all, its light-emitting chips are inferior products, which is reflected in the luminous efficiency. When the luminous efficiency of a single chip is 90LM/W, the whole lamp efficiency is lower, generally below 80LM/W, and now the light-emitting chips of major brands in the factory are at least 140LM/W, which can not be compared. Some people say that low efficiency does not matter if they can light up. What they do not know is that a large amount of heat is generated. As time goes on, the light attenuation is rapidly expanding, and it will not take a year or two, Basically, it needs to be scrapped.
Secondly, the selection of driving power supply. The price and service life of power supply of the same specification will vary greatly due to the different selection of accessories. Low price power supplies generally begin to be damaged in a large area after two years, but high-quality power supplies generally require a warranty of more than 5 years and a service life of more than 7 or 8 years, which greatly reduces the maintenance cost.
Thirdly, the design and materials of the radiator are also crucial. A good heat dissipation design of the lamp is scientific and reasonable, with fast heat dissipation. The temperature rise does not change much when it is lit for a long time. It is not hot to touch. However, if the radiator is simply cut down in cost, it will be hot to light up. It will also affect the normal power of the lamp, and will accelerate the light failure of the lamp.
As the saying goes, a penny is worth a penny. The price is extremely cheap, and the cost is not high. The best you can buy is not as good as the best you can sell. No matter how cheap it is, you will earn money, and no one will do a loss business. The result is that the more lamps are made, the lower the price is, but the quality cannot be guaranteed. There are a few points that let you know the secrets of low price lamps.
First of all, its light-emitting chips are inferior products, which is reflected in the luminous efficiency. When the luminous efficiency of a single chip is 90LM/W, the whole lamp efficiency is lower, generally below 80LM/W, and now the light-emitting chips of major brands in the factory are at least 140LM/W, which can not be compared. Some people say that low efficiency does not matter if they can light up. What they do not know is that a large amount of heat is generated. As time goes on, the light attenuation is rapidly expanding, and it will not take a year or two, Basically, it needs to be scrapped.
Secondly, the selection of driving power supply. The price and service life of power supply of the same specification will vary greatly due to the different selection of accessories. Low price power supplies generally begin to be damaged in a large area after two years, but high-quality power supplies generally require a warranty of more than 5 years and a service life of more than 7 or 8 years, which greatly reduces the maintenance cost.
Thirdly, the design and materials of the radiator are also crucial. A good heat dissipation design of the lamp is scientific and reasonable, with fast heat dissipation. The temperature rise does not change much when it is lit for a long time. It is not hot to touch. However, if the radiator is simply cut down in cost, it will be hot to light up. It will also affect the normal power of the lamp, and will accelerate the light failure of the lamp.
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