Led chip.problem of control pixels of full-color LED display

　　LED chips are now in various forms in the market. Taking the example of the chip 35, many lamp beads are made of fake chip chips. The chip size and appearance are the same as the chip 35, but the chip structure is completely different, and the light attenuation and lifespan will also be different. If the standard crystal chip is arranged at 0.35 yuan, while the pseudo crystal, also known as high imitation crystal, is within 0.2 yuan, the quotation difference is significant. Many packaging factories, due to bullying lamp manufacturers into not knowing about chips, sell counterfeit wafers for around 0.6 to 0.8 yuan, and some even sell them for 0.9 yuan. Standardized high-power chips also have different levels of quality. In shopping malls, chips include specialty products, standard products, large wafers, and loose chips. For example, for a certain brand of 35mil chips, the standard product is a 0.35 yuan cloth. If you use good materials to make it, the quotation is 1 yuan for cloth. If you use poor materials to make it, the quotation is around 0.8-1 yuan; The project item is priced at 0.25 yuan, the loose piece is priced at 0.01 yuan, and the large round piece, also known as the sorting piece, is priced at 0.25 yuan. These products are priced between 0.4 yuan and 0.8 yuan. Led lighting fixtures have LED beads as their core, while LED beads have LED chips as their core. They are also real chips, and their prices vary greatly. We need to keep our eyes open and see clearly. Of course, inferior chips are priced cheaply.

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