USB 2.0 is a USB interface standard released in 2000 with a theoretical maximum transmission speed of 480Mbps (about 60MB/s). The port has four cables (five cables for MicroUSB and MiniUSB), and the maximum output current is 0.5A. USB 2.0 is currently the most common version of USB port, almost all computers have USB 2.0 port, most USB devices also support USB 2.0. USB 2.0 hub. The device can provide USB high speed or full speed connection on the uplink port. The device also provides USB high-speed, full-speed, or low-speed connections on the downlink port. When the uplink port is connected to an electrical environment that supports only high-speed, full-speed, and low-speed connections, the high-speed, full-speed, and low-speed USB connections on the downlink port are enabled. When the uplink port is connected to an electrical environment that supports only full or low speed connections, the USB high-speed connection on the downlink port is disabled. USB 3.0 Hubs is higher than usb 2.0 in terms of transmitting data.
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However, after visiting the Neijiang market, the author discovered that there are currently two kinds of energy-saving lamps on the market, one is to enjoy state subsidies for “saving money and energy-saving lamps†and the other is for consumers to pay for their “high-cost energy-saving lampsâ€. However, these two kinds of energy-saving lamps are facing the dilemma of difficult sales. Municipal Development and Reform Commission officials said that the current sales of energy-saving lamps is difficult, mainly the public's awareness of energy conservation and environmental protection needs to be improved, followed by the promotion of energy-saving lamps is not enough, the awareness of the people is low.
Energy-saving lamps sold cold
Recently, the light bulbs rented at Ms. Zhou’s home at No. 699 Xingsheng Road in Dongxing District were broken. Originally, they were prepared to buy energy-saving lamps. However, when they came to the store, one of the cheapest energy-saving lamps was 12 yuan. "An energy-saving lamp can buy five or six ordinary lamps. It would be better to spend more on the electricity bill." After comparison, Ms. Zhou bought an ordinary lamp.
The sales staff of a large lighting store in Yuxi Road, Central District, told this reporter that because the state required the gradual deactivation of incandescent lamps and the promotion of energy-saving lamps, they no longer sell incandescent lamps. Currently, only energy-saving lamps are displayed to customers at the store. The salesman said that because the price of energy-saving lamps is much higher than that of incandescent lamps, the public is generally not optimistic and they are not willing to spend more on energy-saving lamps. Therefore, the daily sales volume is very limited.
In the past few days, the author visited Daxie Lighting Market and several hardware stores and supermarkets. It is learned that the price of each energy-saving lamp ranges from RMB 10 to RMB 30, while ordinary incandescent lamps only sell RMB 1 or 2. The shopkeepers reflected that the price of energy-saving lamps is several or even several times that of incandescent lamps. From the perspective of price, consumers will prefer incandescent lamps.
Mr. Chen, who lives in Zhongshi District, Zhongshi Road, told the author that their family was very energy-conscious. A few years ago, they spent a high price of 35 yuan to buy an energy-saving lamp. At the time, only one incandescent lamp sold for 1 yuan. money. "Although this energy-saving lamp is still in use today, the 'worth' of energy-saving lamps is still too high, and ordinary families are under too much pressure to consume."
Energy-saving lamp promotion
The author learned from the Municipal Development and Reform Commission that the state-subsidized energy-saving lamps have a minimum of three pieces of money and one piece of non-subsidized one or twenty dollars. However, the sales of these two energy-saving lamps are not optimistic.
"The energy-saving lamps are not so expensive. Last year, each resident spent a minimum of three blocks and more money to buy a good energy-saving lamp," said Xiao Jinhui, chief of the resource conservation and environmental protection section of the Municipal Development and Reform Commission.
Xiao Jinhui said that what makes people cry and laugh is that not many people actually believe that more than three pieces of money can buy an energy-saving lamp produced by a regular manufacturer.
"I do not believe that energy-saving lamps will be so cheap." Ms. Dai, the person in charge of a shopping mall at Park Street, although engaged in sales of energy-saving appliances, but for such "cause" energy-saving lamps, but also very surprised.
Xiao Jinhui said that in 2011, there are three companies that produce high-efficiency lighting fixtures in our city, but only more than 100,000 energy-saving lamps have been sold. Sales in Mianyang and other places have reached more than one million.
Xiao Jinhui told the author that to buy energy-saving lamps, urban and rural residents can enjoy 50% financial subsidies, and hospitals, schools, supermarkets and other large users can enjoy 30%. This means that people can buy qualified energy-saving lamps with half the money.
Why energy-saving lamps hard to be favored?
One is to enjoy the state subsidies for "saving energy-saving lamps," and the other is for consumers to pay their own "high-cost energy-saving lamps." Why are these two energy-saving lamps difficult to sell?
Xiao Jinhui analyzed that the quality of energy-saving lamps on the market is uneven and there are many fake and shoddy products. In addition, most of the energy-saving lamps sold on the market did not enjoy state subsidies, and prices were naturally high, resulting in cold sales.
“However, there are also certain restrictions on the purchase of energy-saving lamps that enjoy state subsidies.†Xiao Jinhui said that residents can only purchase energy-saving lamps of designated models, designated brands, and specified specifications, and they must also purchase them at specified locations and at specified locations. In addition, in accordance with relevant regulations, the promotion of efficient lighting products must be promoted by designated manufacturers, and cannot be promoted through supermarket sales channels. This means that the promotion of energy-saving lamps is a direct market for manufacturers, which requires more publicity costs, and the profitability of energy-saving lamps is relatively low. Some companies are unwilling to spend more, so the awareness rate of the people is also low. Now.
“They would rather spend a dollar or two on an ordinary light bulb and would not be willing to spend a few extra dollars on energy-saving lamps.†Xiao Jinhui believes that the public’s awareness of environmental protection and energy conservation needs to be improved. LED lights, for example, can be used for at least 25 to 30 years, but the power consumption is only 20% of that of ordinary light bulbs. Long-term use can not only save power, but also reduce energy consumption for the country.
It is reported that in August or September of this year, a new round of energy-saving and high-efficiency lighting promotion activities will begin. The public will then be able to buy cheap, qualified energy-saving lamps. Xiao Jinhui said that he hopes to have a good start in promoting energy-saving lamps this year.
In order to promote energy-saving and emission reduction work, this year the state has allocated 2.2 billion yuan to support the promotion of energy-saving lamps and LED lights. This is not only a benefit-to-people policy, but also to promote the rapid development of the civilian LED lighting market.