Lehman Optoelectronics, which is about to be offered after the New Year's Day, has received attention from the organization in the roadshow. Analysts believe that in the context of the sharp decline in the price of LED upstream chips, 2011 is expected to become the "first year" for the rapid development of LED lighting. As the leading manufacturer of high-end LED products in China, Lehman Optoelectronics is expected to catch up with the industry. express train". According to public information, Lehman Optoelectronics is positioned in the packaging and application of high-end LEDs. The packaged products include in-line, SMD and medium-high power LED devices. Applications include LED display and LED lighting products. It has realized 960 million pieces/year of packaged devices and 6,000 square meters per year of display capacity. Most of the products are exported to more than 50 countries and regions. Market participants pointed out that LED chip quotations have fallen sharply in the third quarter of 2010, which has brought development opportunities for downstream packaging and application companies. Lighting is expected to become a new important application field for LED industry after TV backlight. The proceeds from the issuance will be invested in high-brightness LED package device expansion projects and high-end LED display and LED lighting energy-saving product expansion projects. After the LED package device expansion project was completed, it will produce 753.6 million packaging devices per year. After the LED display and LED lighting energy-saving products project is completed, it will produce 10200 square meters of LED display and 360,000 LED lighting tubes. Li Mantie, chairman of Lehman Optoelectronics, said that LED lighting is an extremely large market under the continuous promotion of the concept of energy saving and environmental protection. The company will focus on developing indoor high-reliability LED fluorescent lamps, bulbs and spotlights. “We are also experimenting with new energy marketing methods such as contract energy management (EMC) in LED lighting. This area will have potential growth potential. The company will enable LED products to enter the room faster through the innovation of marketing model. Commercial lighting." Li Mantie also said that in the next three years, the company will take measures to achieve the business objectives of the main business income and profits increased by more than 30% year-on-year.
Bare aluminium conductors are electrical conductors made from pure aluminium. They are used in various electrical applications, including overhead power transmission and distribution lines.
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Bare aluminium conductors have several advantages over other types of conductors. Firstly, aluminium is lighter than copper, which makes it easier to handle and install. This is particularly important for overhead power lines, where the weight of the conductor can have a significant impact on the cost and feasibility of the project.
Secondly, aluminium has a higher conductivity-to-weight ratio than copper. This means that for a given weight, aluminium conductors can carry more current than copper conductors. This makes them more efficient in terms of power transmission.
However, bare aluminium conductors also have some disadvantages. One major drawback is their lower mechanical strength compared to copper conductors. This makes them more susceptible to sagging and stretching under the weight of their own span, especially in hot weather conditions. To address this issue, aluminium conductors are often reinforced with steel strands to improve their mechanical strength.
Another disadvantage is that aluminium has a higher resistance than copper, which can result in higher power losses and voltage drops. To mitigate this, aluminium conductors are typically designed with larger cross-sectional areas compared to copper conductors to compensate for the higher resistance.
Overall, bare aluminium conductors are widely used in electrical power transmission and distribution systems due to their cost-effectiveness, lightweight, and high conductivity-to-weight ratio. However, careful design and installation considerations are necessary to ensure their mechanical strength and minimize power losses.