Different brands of LED ball bubble lamp, even though the same parameters, but the price is a lot of difference, what is the reason causing the difference in the LED bulb light price in the same parameters?
1. The difference of LED lamp beads. Different quality lamp beads price difference is very large, different types of lamp beads also vary greatly. Some manufacturers in order to reduce the cost, use quality was very poor lamp beads, the luminous decay is very serious for this LED lamp beads, use a few months basically scrapped.
2. PCB. PCB price difference between different materials is also very large. Such as a square meter of the aluminum substrate about 200~300 yuan, a square meter of FR4 about 150~200 yuan, the most low-end cardboard one square meter only needs a few dozen yuan. Not the same material will have a different effect, the use of cardboard will lead to LED heat can not go out, so as to affect the LED life.
3. Power Supply. Different types of power prices are not the same, and power price fluctuations is the biggest, the impact on the entire product price is also the biggest. For example, a resistance capacity of the buck power supply only one yuan, but a better switching power supply needs of five or six yuan, and some even want a few dozen yuan. The influence of power is relatively large on the quality of LED light bulbs, the excellent LED bulb manufacturers will choose the high quality power, poor quality of the power use process prone to failure.
4. Structure. Different material structure of the price difference is huge, and even the same material structure price is also a lot of difference. Such as plastic structure is completely unable to compare with the metal structure. The same material structure, the public mould and private mould price and a lot of difference. Material quality also affect the product's cooling, more related to the safety of the user.
The above article from Sourcechip, reproduced please specify. yjblog1602
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