The quality of led street light on the market now var […]
The quality of led street light on the market now varies from good to bad, and the price of lamps with the same power is several times different. Whether the price is high or the quality is worrying, now I will analyze the extremely cheap led street light on the market so that you can buy it Qualified lamps with high quality and low price will avoid future worries.
As the saying goes, you get what you pay for, the price is extremely cheap, and the cost is not high. Buying is not as good as selling. No matter how cheap he will make money, no one will do business that loses money. The result is that the more the lamps are made, the lower the price, but the quality cannot be guaranteed. There are a few points to let you know the tricks of low-priced lamps. First of all, its light-emitting chips are inferior products, which is reflected in the luminous efficiency. The luminous efficiency of a single chip is 90LM/W, and the efficiency of the whole lamp is even lower, generally below 80LM/W. Now the large-brand light-emitting chips are at least 140LM. /W above, this is incomparable, and some people say that it’s okay to be bright because of low efficiency, but they don’t know what it brings is a large amount of heat generation. As time goes by, the light decay rapidly expands. It will not take a year or two. Basic needs Scrapped. Secondly, the selection of the drive power supply. Due to the different selection of accessories, the price of the power supply of the same specification is too large, and the service life will vary greatly. Low-priced power supplies generally start to be damaged in a large area after two years, but high-quality power supplies generally have a warranty of more than 5 years and a service life of more than 7, 8 years. The maintenance cost is greatly reduced. Thirdly, the design and materials of the radiator are also very important. The heat dissipation design of a good lamp is scientific and reasonable, the heat dissipation is fast, the temperature rise of long-term lighting does not change much, the hand is not hot, but the cost is reduced. It will be hot, it will also affect the normal power of the lamp, and will accelerate the light decay of the lamp.