Accessories of Led Street Light Accessories of LED street light include mounting brackets, photocells, surge protectors, fuses, tempered glass ,and wire connectors. Mounting brackets are used to securely attach the light fixture to a pole or wall. Photocells are sensors that automatically turn the lights on and off based on the amount of ambient light. Surge protectors are devices that protect the LED street light from power surges and voltage spikes. Fuses are used to protect the circuitry from overloading and short circuits. Wire connectors are used to connect the wiring between the LED street light and the power source. These accessories are essential for the proper installation and operation of LED street lights. Accessories Of Metal Halide Lamp,lamp holder E27 E40,electronic ballast,socket E27 E40,electronic component Yangzhou M.T. New Energy & Lighting Group Co., Ltd. , https://www.mtstreetlight.com
Photovoltaic single polycrystalline battle for white heat domestic popular single crystal overseas preference polycrystalline
The photovoltaic industry has always been vying for two technical routes of single polycrystalline, which has become the main battlefield for major PV giants to compete for market share and competition technology. During the SNEC Photovoltaic Exhibition held recently, many senior executives of traditional polycrystalline leading companies have revealed to reporters the trend of increasing the single crystal product line or developing new single crystal technology. However, they are also very vocal about the fact that the front runners plan to be single-crystal. "At present, our products are still dominated by polycrystalline, accounting for more than 70%, but in the future, new bases will be dominated by single crystals." Liu Zengsheng, technical director of Dongfang Risheng, told the Shanghai Securities Journal reporter yesterday that the single crystal is highly efficient and more suitable for front runners. The requirements of the plan and the room for efficiency improvement are also greater. In his view, the domestic market single crystal accounted for almost 30% last year, but this year may reach 40% or even 50%. Liu Zengsheng said that the popularity of domestic single crystals in recent years is still related to the front runner program. In 2015, when the first batch of front-runners were planned, only 20% of the polycrystalline products in the market were able to meet the standards, while 90% of the single-crystal products were able to meet the standards. In contrast, the latter two groups of runners plan to be more balanced when they are formulated. “The value and significance of the front runner program is much ahead of the time when China is moving to parity. However, some customers prefer to use polycrystalline because the initial investment is lower. In particular, some PV modules are not subject to area restrictions. The project is more inclined to polycrystalline, which is particularly obvious in foreign countries." Liu Zengsheng said. Li Gang, general manager of Jiangsu Sialfo Photovoltaic Systems Co., Ltd., which is mainly in overseas markets and mainly based on polycrystalline products, said that the demand for domestic monocrystalline modules has been strong in the past two years, which has a lot to do with the leader plan, because if It is not an efficient product and will not be installed. "It is not very important to discuss single crystal and polycrystalline now. Both products need to look at the application, look at the preferences, and look at the installation environment and project characteristics." Jing Jing, vice president of Jingke Energy, told reporters that the diamond line Cutting makes the cost of single crystal drop drastically, and the market chooses single crystal; black silicon technology or other technologies drive the cost of polycrystalline to decrease faster, and the polycrystalline advantage will be highlighted. Jingke's single polycrystalline products are available. There are two sets of specialized R&D teams in the single polycrystal. The two teams compete with each other and gradually blur the difference between single polycrystals. “From a global perspective, the demand preference for single polycrystals varies from region to region. At present, many foreign markets still prefer polycrystalline, while domestic single crystal demand is relatively high. Only a relatively wide production line, single polycrystalline simultaneous transmission In order to meet the needs of different markets, Qian Jing said that polycrystalline components have always been the main products of Jingke, and will not be easily abandoned. The company's new five or six new products are based on single crystal. The leading polysilicon wafer company, Poly GCL, is also actively promoting the development of single crystal technology. According to the company's CEO Zhu Zhanjun, from the perspective of photovoltaic raw materials, the company's FBR (circulating fluidized bed granular silicon technology) technology, including CCz continuous straight-drawing single crystal technology, is progressing in an orderly manner, in the first half of this year. Achieved phased results. “We have always believed that the future of the photovoltaic industry depends on technological advancement and technological innovation. If there is no new technology in the future investment of any industry, or a technology with lower cost and higher conversion efficiency, it is a risky investment. GCL-Poly has mastered a number of advanced technologies through mergers and acquisitions and independent research and development. The new polysilicon base in Xinjiang will be put into trial production before the end of June this year. In the field of monocrystalline silicon wafers, we use CCz continuous straight-drawing single crystal technology project. It is progressing steadily." Zhu Zhanjun said.