The price difference of LED lights is mainly in the following aspects:
Chip: Is the chip genuine or non-genuine from abroad? Is it the foreign one? The first-class corps are CREE, OSL and Japan Nichia in Europe and the United States; others such as Purui, Toyoda Gosei, Seoul Semiconductor, etc. are also quite good; Taiwan's Jingyuan, New Century, etc. correspond to the mid-end, and the price of domestic chips is relatively high. Low.
Packaging: It also uses a better chip. Is the packaging original or self-packaged? Is it epoxy or silicone? Is it a double wire or a single wire? And so on, these all have an impact on the price. Does the chip use high-power LEDs or SMDs as light sources? Of course the higher power is better. If SMD is used as the light source, then the specification is 3528 or 5050 or other, etc. Of course, the cost of different specifications is different, and the price is naturally different. Is the drive circuit constant voltage or constant current, and what kind of constant current circuit is used if constant current is used? How about stability and reliability, etc. Some low-end LED lamps and lanterns use low-cost LED drivers, and it will take less than a few months or even a few days to flash during the trial, which is caused by the use of inferior driving power. Of course, such inferior LED lamps Prices are lower.
Heat dissipation method: The life of the LED has a great relationship with the heat dissipation. If the heat dissipation is not good, the light decay will be very serious, and there will be problems after a long time.
Heat dissipation material: At present, most of the domestic LED lamps use aluminum materials for heat dissipation, so using die-cast aluminum and profile aluminum for heat dissipation, the effect is different, the latter of course has high cost, and the heat dissipation effect is good.
Appearance craftsmanship: Needless to say, consumers can see it. In particular, there are some LED lamps with "bad internal organs" but very delicate appearance, which can especially make some consumers have a good impression and are willing to buy them.
