Energy conservation and emission reduction has always been the direction advocated by the state. In the household products, such a concept is also common. In the past two years, there has been a boom in LED energy conservation. However, at the end of 2012, the National Quality Supervision Bureau, the General Administration of Quality Supervision, Inspection and Quarantine, and the Industrial and Commercial Bureau conducted a random inspection of LED lighting products, energy-saving lamps, road lighting, fire emergency lamps and electric light sources. The results of LED lighting products were only 51%. .
Where is the price difference?
The reporter walked around the market as a consumer. Basically, each merchant has different brands of LED lighting products, and the price difference between different products is huge. Take 4 watt LED spotlights as an example, the price ranges from about 15 yuan to hundreds of yuan. The price of small factories in Guangdong is basically around 15-40 yuan, the price of domestic famous brands is about 70 yuan, and the prices of foreign brands such as Philips and Osram are more than 100 yuan.
When the reporter asked the merchant why the price difference was so large, the merchant simply said that "the quality is different." A merchant took out a 15 yuan and a 30 yuan LED spotlight to demonstrate to reporters. After power-on, the merchant pointed to one of them and said: "The lighting should be much brighter, the quality must be better." And in another business, the same phenomenon, the merchant pointed to the slightly dark LED light said: "Light soft Not glaring, the quality is obviously better, and it shows that the bright one will become very dark after half a year, and it will not meet the lighting needs...
The two businesses are completely different, and the reporters are confused. For the service life of the products, most of the merchants in the lighting market advertised that “the use time is more than 10,000 hours, and the service life of the family should be more than 8 yearsâ€, but correspondingly, the warranty period provided is generally only 1- In 2 years, as such, the service life seems to be a "theoretical concept."
Good quality and bad quality for ordinary consumers
With many doubts about LED lighting products, the reporter interviewed Mr. Luo, who has been engaged in LED product sales for many years. He told reporters that from the perspective of practical use, the quality of LED lights can be evaluated from color temperature, power and life. Some LED lamps used in showcases have higher requirements on color temperature. It is necessary to ensure that the color of the exhibits will not be distorted under the illumination of LED lights, and the power consumption and service life are more important for home use. These indicators are only used with professional instruments. In order to determine, it is difficult for ordinary consumers to identify the quality of the product by comparison. "
The LED market is so chaotic, and sometimes we can't figure out which one is good and which is inferior. Manufacturers have their own opinions, and our dealers can only make small profits with the flow. Mr. Luo said helplessly. Indeed, from the current market situation, the price confusion of LED lighting products and the mixed quality of products have become the biggest factors hindering consumers' choice.
Subsequently, the reporter interviewed IKEA, which is fully promoting LED lighting products. The relevant person in charge said that IKEA plans to replace all lighting products with LED lights by 2016. From a professional point of view, LED lights do have many advantages, because compared with ordinary incandescent lamps, LED lamps save 85% energy and increase the service life by 20 years. However, the person in charge also said that because the consumer market for domestic household LED lighting products is still not mature, how to let more consumers understand and accept LED lighting products, and learn to choose mature and standardized LED products, there is still a way To go, we need the joint efforts of the whole industry.
Silicon TVS / TSS:
Diode TVS (Transient Voltage Suppressor), also known as Transient suppression diodes, is widely used a new type of high efficient circuit protection device, it has a fast response time (the nanosecond) and high surge absorbing ability.When it ends of stand moments of high energy shock, TVS can bring the two ends at high rate from high impedance to a low impedance between impedance values, to absorb a large current moment, put it at both ends of the voltage restraint on a predetermined value, thus protecting the back of the circuit components are not affected by the impact of the transient high pressure spikes.
Silicon TVS Transient Voltage Suppresso,Silicon TSS Transient Voltage Suppresso
YANGZHOU POSITIONING TECH CO., LTD. , https://www.cnfudatech.com