In view of the chaotic market competition in the LED lighting market, many merchants have adopted a vicious price reduction battle. It is also very difficult for consumers to recognize the LED chip time is very small.
The main reasons are:
1. No professional instruments
2. All purchased products are finished products without separate test samples
3. Too little knowledge about LED chips.
First of all, let's understand the LED chip. What is LED? Simply put, it is a light-emitting diode. In the early years, LEDs were mainly used as indicator lights in circuits. With the rapid changes, LED technology has become more and more mature, and the field of use has gradually expanded. LED has gradually entered the lighting market and is widely used in all aspects of life lighting.
What are the main LED products we touch or recognize today? LED TV, LED display, LED flashlight, etc. are the most common LED products. For the lighting industry, there are mainly LED ceiling lights, LED ceiling lights, LED fluorescent tubes, and LED panel lights that only emerged in 2012.
Compared with traditional incandescent lamps and energy-saving lamps, what advantages can LEDs make it an inevitable product to replace traditional lighting fixtures?
The main product advantages are:
(1) Energy saving, electricity saving, low carbon and environmental protection. This is the main advantage that LED products will replace traditional lighting. It saves 90% of electricity compared to traditional incandescent lamps and 50% of electricity compared to energy-saving lamps.
(2) Diversified styles. Whether it is a traditional incandescent lamp or a traditional energy-saving lamp, or even a lamp product such as a sodium lamp, so far it can only stay in the shape stage of the bulb and the lamp tube. LED lamps now exist in various forms. In addition to catering to LED bulbs and LED fluorescent tubes produced by traditional lamps, a large number of lamps with different shapes have been derived, including lamp strips, string lights, light bars, modules, wall lamps , Crystal lights and other products. Large ones can be LED floodlights and landscape lights used for outdoor advertising lighting and landscape engineering lighting; small ones can be as small as green bean string lights.
(3) Other superior performance. Such as no strobe, no lead mercury, no radiation, high brightness, low fever, etc.
Although LED products have so many advantages, from the practical application, there are still a series of problems in the current popularity of LED. The main reasons are: (1) The core technologies such as chips are in the hands of developed countries such as Japan and the United States. The number of domestically developed chips is small and the product quality is poor. (2) Despite the vastness of China's vast areas, information in the towns and villages is blocked, and coupled with the lag in scientific and technological awareness, the promotion of today's LED products only stays in large and medium cities.
In spite of this, many businesses still feel the trend of the development of LED lamps and vigorously promote the popularization of LED lamps. However, in such a fierce competition environment, it is inevitable that there will be no vicious competition in the market. The vicious competition in the LED market is mainly manifested in (1) Merchants use inferior materials to produce products at low prices, but the interests of consumers cannot be guaranteed. (2) LED is a new product that has only emerged in recent years. The country does not have a complete management system, and the quality of products can only be determined by the market. (3) The interests of merchants exist in the final stage of the manufacturing process, and the profits are extremely low, forcing extreme strategies.
Therefore, there are a large number of sub-charged products on the market, the most obvious of which is to replace high-quality lamp beads with inferior lamp beads, and the most obvious difference between good and bad lamp beads is the chip.
How to identify the chip is a very difficult problem for ordinary people. The type of chip determines the quality of the product, the length of service life and the quality of the lighting effect.
Here we use the simplest method to identify the lamp bead chip.
First of all, the tools we need are:
Tweezers, magnifying glass
Part 2: Prepare a high-power LED lamp bead
Part III: We peeled the potting silicone on the surface of the lamp beads with tweezers or freehand, and saw the LED chip of sesame size. Then use a magnifying glass to check whether the pattern of the lamp bead chip is consistent with the known lamp bead chip. There are instructions for the lamp bead chip on the outside of the general product packaging.
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