Personal consumer market heats up Nanjing LED municipal lighting project is cold
Since the beginning of last year, ordinary incandescent lamps have gradually withdrawn from the market, and energy-saving lamps and LED lights have ushered in huge business opportunities. In particular, LED lights are becoming more and more popular in the home market. However, in the field of municipal lighting, the promotion of LED in Nanjing is relatively slow. Industry experts said that this year may be the "first year" of large-scale application of LED.
4 of the 10 bulbs sold are LED lights
At Jiangdongmen Jinsheng Home Plaza, the reporter randomly walked into several lighting and lighting stores, and found that all kinds of LED downlights and spotlights were placed in the most conspicuous position. Sales staff said that the recent sales of LED lights can be said to have advanced by leaps and bounds. "At present, we sell 10 lamps in our store, and 4 of them are LEDs." Sanli Lighting dealer told reporters that the current warranty period for brand LED lights is 3-5 years, and the life expectancy is 50,000-60 hours. The price is about half cheaper than when it was first listed, so the sales are good.
Mr. Zhang, who is buying lighting in the store, told reporters that the LED lamp was expensive in his impression, but it was not so difficult to accept it today. "This NVC 3 watt downlight is 40 yuan, the same. The energy-saving lamp with brightness is about 20 yuan. I figured out that the life of the energy-saving lamp is less than 10,000 hours, and the energy-saving efficiency is not as high as the LED. So I still choose the LED light decisively."
Red Star Macalline Decoration City Philips dealers said that since the domestic ban on ordinary lighting incandescent lamps of 100 watts and above in October last year, the sales of incandescent lamps in the store have been reduced by more than 60%, while the sales of energy-saving lamps are the same as before, but LED bulb sales have increased by 50% compared to last year.
The trial effect is not good, Nanjing LED street light promotion is slow
Contrary to the rise of the personal market, the pace of LED promotion in Nanjing Municipal Engineering is a bit "slow". "Three years ago, our pilot on Jiefang Road was not successful." The head of the Nanjing Street Lamp Management Office broke the reason. In August 2010, the street lamp management office replaced all the high-pressure sodium lamps on both sides of Jiefang Road with LED lights. According to the price at that time, the price of a LED energy-saving street lamp was 6,000 yuan, and the price of a common high-pressure sodium lamp was less than 2,000 yuan. On the road with a total length of 3 kilometers on Jiefang Road, 170 LED energy-saving street lamps were installed, one year. More pilots, almost all of the LED lamp drivers have been repaired and replaced, and the cost is high.
Technicians also found that LED lights as street lights, light efficiency and energy saving effects are also very general. “LED lights are relatively mature as low-power lighting technologies such as indoor lighting and landscape lights. They are not very suitable for street lighting applications.†In addition to technical issues, LED municipal lighting still lacks government support, and it is difficult to keep up with the funds. .
It is understood that at present, the Jiefang Road, Dingbi Road in the urban area of ​​Nanjing, the Taishan Road in the Jiangbei area, and some roads in the Xianlin area have put about 1000 LED street lamps, which is only compared with the 120,000 street lamps in the main city. They are very low.
After performance and price optimization, can this year be widely promoted?
Industry insiders have said that with the sharp drop in prices, the industry has entered the reshuffle stage, and the brand of genuine high-quality and low-priced will usher in great development. This year will be the first year of large-scale promotion of LED lighting.
Nanjing Handerson Technology Co., Ltd. is an old-fashioned LED manufacturer in Nanjing. Yang Haifeng, executive vice president, said that when LED lighting was just emerging in the past few years, the market was mixed, and the price was high and the quality was everywhere. But in the past two years, the market has gradually evolved in an orderly manner. Especially since last year, the cost of domestic LED chips has dropped by 50% compared with the same period of last year. “In the case of street lamps, the original 120-watt LED street lamps are about 4,000-6,000 yuan. The current price is only about 1000-2000 yuan, and the basics of high-pressure sodium lamps. Yang Haifeng said that the current high-power lighting technology is gradually improving. "In terms of luminous efficiency, energy-saving lamps emit 80 lumens per watt. The original LED lamps emit 120 lumens per watt, and can reach 260-360 lumens in the future. It can also reach 50,000 hours of indoor lighting."
Yang Haifeng said that in addition to the home market, the commercial and industrial enterprise market is also very strong this year. “Suning Yunshang, Yurun Group and Yangzi Petrochemical have purchased our products, mainly used in warehouses, factories and other areas that require long-term lighting. Energy consumption is only about 40% of energy-saving lamps." He believes that municipal street lamps will be the biggest market for the next step.
( This article is reproduced on the Internet. The texts and opinions expressed in this article have not been confirmed by this site, nor do they represent the position of Gaogong LED . Readers need to verify the relevant content by themselves. )
4 of the 10 bulbs sold are LED lights
At Jiangdongmen Jinsheng Home Plaza, the reporter randomly walked into several lighting and lighting stores, and found that all kinds of LED downlights and spotlights were placed in the most conspicuous position. Sales staff said that the recent sales of LED lights can be said to have advanced by leaps and bounds. "At present, we sell 10 lamps in our store, and 4 of them are LEDs." Sanli Lighting dealer told reporters that the current warranty period for brand LED lights is 3-5 years, and the life expectancy is 50,000-60 hours. The price is about half cheaper than when it was first listed, so the sales are good.
Mr. Zhang, who is buying lighting in the store, told reporters that the LED lamp was expensive in his impression, but it was not so difficult to accept it today. "This NVC 3 watt downlight is 40 yuan, the same. The energy-saving lamp with brightness is about 20 yuan. I figured out that the life of the energy-saving lamp is less than 10,000 hours, and the energy-saving efficiency is not as high as the LED. So I still choose the LED light decisively."
Red Star Macalline Decoration City Philips dealers said that since the domestic ban on ordinary lighting incandescent lamps of 100 watts and above in October last year, the sales of incandescent lamps in the store have been reduced by more than 60%, while the sales of energy-saving lamps are the same as before, but LED bulb sales have increased by 50% compared to last year.
The trial effect is not good, Nanjing LED street light promotion is slow
Contrary to the rise of the personal market, the pace of LED promotion in Nanjing Municipal Engineering is a bit "slow". "Three years ago, our pilot on Jiefang Road was not successful." The head of the Nanjing Street Lamp Management Office broke the reason. In August 2010, the street lamp management office replaced all the high-pressure sodium lamps on both sides of Jiefang Road with LED lights. According to the price at that time, the price of a LED energy-saving street lamp was 6,000 yuan, and the price of a common high-pressure sodium lamp was less than 2,000 yuan. On the road with a total length of 3 kilometers on Jiefang Road, 170 LED energy-saving street lamps were installed, one year. More pilots, almost all of the LED lamp drivers have been repaired and replaced, and the cost is high.
Technicians also found that LED lights as street lights, light efficiency and energy saving effects are also very general. “LED lights are relatively mature as low-power lighting technologies such as indoor lighting and landscape lights. They are not very suitable for street lighting applications.†In addition to technical issues, LED municipal lighting still lacks government support, and it is difficult to keep up with the funds. .
It is understood that at present, the Jiefang Road, Dingbi Road in the urban area of ​​Nanjing, the Taishan Road in the Jiangbei area, and some roads in the Xianlin area have put about 1000 LED street lamps, which is only compared with the 120,000 street lamps in the main city. They are very low.
After performance and price optimization, can this year be widely promoted?
Industry insiders have said that with the sharp drop in prices, the industry has entered the reshuffle stage, and the brand of genuine high-quality and low-priced will usher in great development. This year will be the first year of large-scale promotion of LED lighting.
Nanjing Handerson Technology Co., Ltd. is an old-fashioned LED manufacturer in Nanjing. Yang Haifeng, executive vice president, said that when LED lighting was just emerging in the past few years, the market was mixed, and the price was high and the quality was everywhere. But in the past two years, the market has gradually evolved in an orderly manner. Especially since last year, the cost of domestic LED chips has dropped by 50% compared with the same period of last year. “In the case of street lamps, the original 120-watt LED street lamps are about 4,000-6,000 yuan. The current price is only about 1000-2000 yuan, and the basics of high-pressure sodium lamps. Yang Haifeng said that the current high-power lighting technology is gradually improving. "In terms of luminous efficiency, energy-saving lamps emit 80 lumens per watt. The original LED lamps emit 120 lumens per watt, and can reach 260-360 lumens in the future. It can also reach 50,000 hours of indoor lighting."
Yang Haifeng said that in addition to the home market, the commercial and industrial enterprise market is also very strong this year. “Suning Yunshang, Yurun Group and Yangzi Petrochemical have purchased our products, mainly used in warehouses, factories and other areas that require long-term lighting. Energy consumption is only about 40% of energy-saving lamps." He believes that municipal street lamps will be the biggest market for the next step.
( This article is reproduced on the Internet. The texts and opinions expressed in this article have not been confirmed by this site, nor do they represent the position of Gaogong LED . Readers need to verify the relevant content by themselves. )
Lead Acid vs. Lithium: Safety
Safety is always a primary consideration when designing a solar system, but it becomes even more important when your system is on a boat far from shore, or an RV on a remote road. Different battery chemistries have different risk factors. Obviously, abusing any type of battery can create a dangerous situation. But with normal, and perhaps even a bit of rough treatment, the different batteries have different safety concerns that need to be addressed.
- Flooded lead acid batteries have an acid and water electrolyte in the battery that has to be checked on a regular basis. During normal charging cycles, this mixture turns into a gas that needs to be vented outside. A buildup of the gas inside a vehicle or vessel can be explosive. Proper ventilation mitigates this concern. The outgassing of the battery is normal, but requires owners to regularly check to see when the electrolyte level gets low from the outgassing. If low, it needs to have more distilled water added. This runs the risk of acid spills if overfilled or overcharged. This requires you to be prepared with proper safety equipment including gloves, safety glasses, and baking soda to neutralize the acid if needed.
- Sealed lead acid batteries do not have outgassing or electrolyte levels to check, as they do not outgas. Normal battery safety measures should be followed, like checking for tight cable connections, corrosion, and preventing physical damage to the battery itself.
- Lithium batteries also do not outgas, but certain types (the ones with cobalt, known as lithium cobalt oxide or LCO) can experience thermal runaway – a condition where the battery starts to get hot, which causes it to react to the heat and get hotter and hotter until it catches on fire. LCO batteries are most commonly used in cell phones, hoverboards, and electric cars, and are generally not recommended for mobile applications.
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