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According to the research institution Jibang technology (TrendForce) According to its LEDinside new LED bulb retail price survey, the retail price of LED bulbs continued to show a downward trend in April 2013. The average retail price of LED bulbs replacing 40W is about 5. 5%. 7 dropped to 16. $1. There are fewer new items in each region. Replacing the 60 w led bulb, the average price in April was 1. 2 fell to 23. $8. With the exception of China and Taiwan, the average price of new items has risen due to higher prices, while the average price in other regions has basically maintained a stable downward trend. Replacing the traditional 40-watt incandescent bulb, the average price in China fell below US $10, LEDinside said, replacing the 40-watt LED bulb with an average retail price of about 5. 5% in April 2013. 7 dropped to 16. $1. There are fewer new items in each region. Among them, prices in Britain and Germany showed 5. Respectively in April. 3 and 13. 2 decline, the original commodity prices in the two regions showed a relatively large downward trend, especially the price reduction of Osram and Samsung brand products was more obvious. No new items appeared in both regions this month. The average price of goods replacing 40W in Japan is about 2. 5%. 2 rise, some commodities have risen back due to the end of the promotion period, and there are no new items in the region. The average price of goods in the United States showed 3. In April. 7 up. The original commodity prices fluctuated slightly, and there were no new items in the region. South Korea's April price was 1. 6 fell slightly, the original commodity prices remained basically unchanged, and prices fell due to the rise in exchange rates. In addition, the price of commodities replacing 40W in China dropped 9 to 9. 5%. US $8 is still low in various regions. Mainly because some of the original goods began to promote, the price dropped sharply. However, commodity prices in Taiwan showed 16. 5% in April. 7 fell sharply, the original commodity prices remained stable, mainly due to the lower price of new items, resulting in lower average prices. Replacing the traditional 60-watt incandescent bulb, the European market price dropped significantly. In April, the average price of LED bulbs replacing 60W showed 1. 2 fell to 23. $8. With the exception of China and Taiwan, the average price of new items has risen due to higher prices, while the average price in other regions has basically maintained a stable downward trend. Prices in Japan showed 7. 5% in April. 1 fell to 23. $9. The prices of the original commodities showed a fluctuating trend, while the rise of exchange rate pushed down the prices. Prices in South Korea show 1. 6 slight decline, the original commodity prices have not changed, mainly due to the rise in exchange rates leading to price declines. Prices in the United States showed 0. In April. 7 Decline, the original commodity price fluctuated slightly, and there were more new items this month. Prices in Britain and Germany showed 4. 5% respectively. 8 and 7. 3 decline, of which the original commodity prices in Germany have generally dropped significantly, with fewer new items added in the two regions. China and Taiwan replaced 60W commodity prices by 11. Respectively. 6 and 13. 4 up. The original commodity prices in the two regions remained basically stable, mainly due to the higher prices of new commodities, resulting in an increase in the average price. Prices in Europe continue to fall, and competition between local and Korean manufacturers intensifies. LEDinside observed that the prices of Osram and Samsung bulb lamp products in Europe dropped significantly in April, following Samsung's 7. After the 5WLED bulb fell below 10 euros, Osram also greatly reduced the selling price of the product. Its 8WLED bulb lamp, with a luminous flux of 470LM, is used to replace the traditional 40W incandescent lamp, the price of this product in Germany in April was only 9. 95 euros. LEDinside believes that Osram's price reduction shows its intention and determination to seize the European lighting terminal consumer market. At the same time, Korean manufacturers, represented by Samsung, continue to follow the consistent price war strategy, frequently reducing prices and actively seizing the European market. At present, it seems that the competition in the European market is accelerating and the average price of products continues to fall, it can be observed that the implementation of the comprehensive ban on Bering and the positive impact of the economic recovery after the European debt crisis on the LED bulb lamp market are gradually fermenting, and the market penetration rate of LED bulbs is expected to accelerate.

The solar street light on rod is appropriate primary use value, therefore, the solar street lamp manufacturers produce rod stud processing aspect also is to have the requirement. Solar street light pole is made of steel, raw materials for the international standard low silicon q235 low carbon and high strength, thickness


solar street light is appropriate to the requirement of pole and main utilization value, thus for solar pole lamps manufacturers, processing requirements and regulations. Solar energy lamp posts for steel, raw material is q235, low silicon, low carbon, high strength, thickness 5 mm, the bottom flange thickness is 16 mm. Calculate the proportion of the bottom of the stem and root structure, structure, according to the user to determine the shape and structure parameters of manufacturer, according to the seismic fortification level 6 and 8 wind. After solar monitoring stick upright, with theodolite check good two-way straightness, straightness error is 1. 0. The vertical of the rod to the tapered structure, anise conical rod without deformation and distortion. The roundness of the rod body specification of 1. 0 mm. 。 Surface lubrication is common, and there is no transverse weld. Leaf blade scratch test ( 25 square millimeters) 。 Coating layer adhesion is strong, not easy to fall off. Seal stud, top seal to prevent moisture to enter, waterproof leakage within the method is reliable. Light pole shape and size to meet user requirements, the exterior is harmonious, beautiful and easy, uniform color, steel pipe diameter is reasonable. All welding rod welding process without welding, weld formation, no welding defects, after galvanized passivation treatment, coating adhesion, thickness of 65 mm. Choose the high quality plastic powder.

Now very popular solar street lamps, small to new rural area, we can see in the towns of solar street light. Why, then shandong solar street lamps in the new countryside so popular? Nowadays solar street light is affected by



now the solar street lamps Solar street light is a crystalline silicon solar battery power supply, valve control type sealed and maintenance-free battery ( Gel battery) Store electricity, super bright LED as light source, lamps and lanterns and controlled by the intelligent charging and discharging controller, is used to instead of the traditional public power lighting lamps. 】 Very popular, small to new rural area, we can see into the towns of solar street lights. Why, then shandong solar street lamps in the new countryside so popular?


now very popular solar street lamps, small to new rural area, we can see into the towns of solar street light. Why, then shandong solar street lamps in the new countryside so popular? Yu sheng lighting to introduce for everybody. The following content is as follows:










a, solar street lamps use LED light source' LED light source is the light emitting diode ( 领导) For light source of light. 】

we all know that solar street lamps use LED light source, LED street lamp' LED street lamp is made of street lamp, LED lamps and lanterns with high efficiency, safety, energy saving, environmental protection, long service life, fast response speed, high color rendering index of unique advantages, the city lighting energy saving is of great significance. 】 Good color rendering, light failure is small, there is still a long service life. Use LED light source, light source are much better than others. It is a kind of low energy products, energy consumption, long, has a long life.

2, solar street lamps use low cost

is the use of solar energy power supply, solar street lamps do not need to use electricity, also do not need to like mains street lamp layout wire and cable, can save a lot of manpower material resources. We have been using mains street lamp before, using more power and can cause power supply tense situation appears in summer. If you have the solar street light, there is no need to consider these factors, it is taken from the nature, an inexhaustible, inexhaustible. Solar street light is a one-time investment, its service life is long, and very convenient, can continue to benefit from a long time. And its maintenance cost is very low, also won't appear too much of an issue.

3, solar street lamps of high safety

the solar energy is a safe and reliable, it has a intelligent controller, to balance the current of battery voltage, power can also smart. And it is used in direct current, voltage only 12 v or 24 v, there will be no leakage, there will be no more electric shock and fire accidents. Now more and more new rural area choose to use solar street light, this is because all aspects together, solar street light is more economical, more safety and reliable. It benefits a lot in the future will also spread more widely.

in conclusion is in shandong popular reasons related to introduce solar street lamps, thank you very much for reading! Shandong yu sheng lighting engineering co. , LTD focus on installation and integration of solar street light, solar street lamp, project-light lamp, landscape lamp, and other products, the company has a large number of conventional solar street lamp, project-light lamp, spot, reliable quality, energy conservation, environmental protection, welcome to ask us!

What is the heat island effect of solar panels? What can make the solar panels generate thermal conductivity effect? In order to prevent solar panels, heat island effect we should do? Solar panels, heat island effect can make to reduce the working efficiency of the solar panels and



what is a solar panel ( Solar panels, 太阳能板) Is by absorbing sunlight, the solar radiation through the photoelectric effect or photochemical effect directly or indirectly converted into electrical energy device, the main material of most of the solar panel as the 'silicon', but because of the production cost is larger, so it widely used, we still have some limitations. 】 The heat island effect? What can make the solar panels generate thermal conductivity effect? In order to prevent solar panels, heat island effect we should do? Solar panels, heat island effect can make reduce the working efficiency and service life of the solar panels, in order to keep the solar panels work efficiency and service life, we will prevent the heat island effect. Solar panels, heat island effect of external reason and internal reason, external reason is commonly lead to solar panels of the main causes of heat island effect, will consider when solar panels production and solve out the inside of the heat island effect. If solar modules by other objects, such as bird droppings, tree objects such as long-term shade on the solar panels, obscured solar battery components at this time will be a serious fever, then produce the heat island effect. The effect of solar cells will cause serious damage. Has light generated by the solar cell part or all of the energy, energy consumed can be covered solar cells. In order to prevent the solar cell is damaged due to heat island effect, and need to solar cell components of positive and negative electrode a bypass diode in parallel, in order to avoid has the light energy produced by solar modules by shelter solar modules. Its role is in the component or open shade, provide a current path, not disable the whole series of solar modules.

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scenery complementary street lamp principle is the use of solar energy and wind power generation, store electricity, battery to power a light at night. The wind is sufficient and insufficient light place advantage is very outstanding. Scenery complementary street light really better than solar street light? Lighting under the specific analysis for you.

the advantage of scenery complementary lamp lights basically has the following several aspects:
and make up the lack of sunlight, in the sunshine condition not good, no doubt is a good solution. Especially in mountainous, forested, and many times the solar panel cannot obtain the very good sunshine, but the mountain wind very stable and strong, so a lot of people choose scenery complementary street light as the main lighting. There are many coastal areas and rainy area of solar panels can't get enough sunlight to power supply, scenery complementary street lamps will play to the advantages of them.
better, if a local sustained winds, so fan at night also can continue to power generation, so there will be less battery power is consumed during the night, so that you can use a smaller battery capacity, so as to reduce the cost of scenery complementary street lamp.

but not all areas are suitable for scenery complementary street light, if lack of a local wind, or the monsoon climate obviously, half or even less than half of the year have the right wind speed, then use the fan can only increase the cost of solar street lights, and have no obvious effect. So before whether to use scenery complementary street lamp, want to be decided according to the local situation, particular case is particular analysis.