Vision SE is our specialist vision solution offering a wide range of classification services. Through advanced image processing, we realize professional-level visual technology, which is suitable for medical image processing, scientific research and other fields. We focus on performance optimization to make it an industrial-grade solution that is widely used in factory automation and high-demand application scenarios. At the same time, we pay attention to data security and privacy protection, ensuring that the highest standards are met when processing images and data. Vision SE's classified services exceed expectations, providing high-performance and professional-grade vision solutions to various industries. vision services,vision sensor,vision sense,vision se,vision se review Ningbo Autrends International Trade Co., Ltd. , https://www.visionsemr.com
In order to pursue low cost, manufacturers use very low quality lamp beads. Such lamp beads often have a very serious phenomenon of light decay. After a few months of use, they are basically scrapped. Such products are not as long as incandescent lamps.
Demystifying the difference in price of LED bulbs is so big
Recently, major websites have revealed the price comparison of the top ten LED lighting brand LED bulbs . From the comparison, LED bulbs with the same parameters can be seen, but the price is quite different, such as a brand of 7W bulb 48.9 yuan, but Another brand only needs 13.2 yuan, and the price difference is close to 3 times. What is the reason for the price difference of the same parameter product? Today Xiaobian will take you to reveal the reason why the price difference of LED bulbs is so large.
1. Lamp bead difference
The price of different quality lamps is very different, and the different types of lamps are also very different. If the same is 2835 lamp beads, some only need less than 2 cents, and some need more than 7 hair.
2. PCB
The price difference of PCBs of different materials is also very large. For example, the aluminum substrate is about 200-300 yuan a square meter, the FR4 is about 150-200 square meters, and the lowest end cardboard only needs tens of dollars and one square meter. In fact, the same is the aluminum substrate, the same is FR4, the price is not the same. Different materials will have different heat conduction effects. The use of cardboard will cause the LED heat to be prevented, which will affect the LED life.
3. power supply
Different types of power supplies are also different in price, and power fluctuations are the biggest, and the price of the entire product is the biggest. For example, a resistor-capacitor step-down power supply only needs more than one, and a better switching power supply requires five or six blocks, and some even require more than ten. The power supply has a great influence on the quality of the LED bulb . The poor quality of the power supply is prone to failure during use, such as dead lights, bombers, etc.
4. structure
The prices of different material structures vary greatly, and even the price of the same material structure is quite different. For example, the plastic structure is completely incomparable with the metal structure. The same material structure, the price of the public and private models are quite different. The quality of the material also affects the heat dissipation of the product, and is related to the safety of the user.