1. From the perspective of industry prosperity and policy support, the energy-saving lighting sector deserves long-term attention. At present, the application technology of energy-saving lamps has been relatively mature, and a wide range of applications have become the trend of the times. We have noticed that whenever the central government issues policies related to energy-saving lighting, the stock prices of listed companies in the lighting sector will always respond in the secondary market, including Snowlight (002076), Foshan Lighting (000541), Zhejiang. Sunshine (600261), Lianchuang Optoelectronics (600363) and so on.
2. Steady investors can pay due attention to Foshan Lighting and Zhejiang Sunshine. T8 and T5 fluorescent lamps are the main items for national energy-saving products bidding. At present, Foshan Lighting has 27 T8 production lines, with an annual output of 210 million T8 fluorescent lamps; 6 T5 production lines with an annual output of 30 million T5 fluorescent lamps. The company said that in 2009, it will use its own funds to introduce three T8 production lines and three T5 production lines, so that T8 products will reach an annual output of 250 million pieces, and T5 products will reach an annual output of 55 million pieces, achieving the synchronization of the company's energy-saving products scale and efficiency. The goal of growth. Zhejiang Sunshine is currently one of the largest energy-saving lamp production and export bases in China. At present, the company's energy-saving lamps output is about 200 million, accounting for more than 10% of the global total. The company is also the largest manufacturer of Philips OEM lamps.
3. In the lighting sector, semiconductor lighting is also worthy of long-term attention. Compared with other lighting methods, LED (semiconductor lighting) is more efficient and is known as the fourth revolution in the history of human lighting. In 1999, the luminous efficiency of white LEDs has reached 15lm/w, catching up with ordinary incandescent lamps. It reached 25lm/w after two years, which is similar to the tungsten halogen lamp. In 2006, white LEDs of more than 70 lm/w have been developed to reach the level of fluorescent lamps. However, it will take time for LEDs to be used in general lighting, and it is generally expected to be around 2012. Incandescent, fluorescent and LED lights of the same brightness are used for 10,000 hours. The total cost of LED lamps is higher than that of fluorescent lamps, but it is already lower than that of incandescent lamps. With the continuous advancement of LED technology, the price of LED products will continue to decline. When the cost of LEDs falls to a level that is generally affordable, LED products will be widely used in the market. We believe that Sanan Optoelectronics (600703), a domestic LED faucet that produces LED epitaxial wafers and chips, deserves long-term attention.
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As LCD display in YFJ company that we usually use it to military grade battery ,especially Lithium-ion batteries ,for these battery applications ,we have obvious advantage is that we focus more on shor circuit protection which we follow the US military standard.
Short circuit protection:The following test shall be performed. Charge batteriesas specified in ; use of 4.6.3 is permitted. Measure and record the OCV. Short each battery across all the positive and negative terminals with a total external resistance not greater than 50 milliohms. After one hour remove the short from across the terminals. Measure and record the OCV. Stabilize batteries at the normal conditions of 4.3.1 for not less than 2 hours. Chargebatteries in accordance with 4.6; use of 4.6.3 is permitted. Stabilize batteries at normal conditions for not less than 2 hours, then discharge the battery in accordance with 4.7.2.3. The battery shall meet the requirements of 3.7.2.3.
Li-Ion Battery With Lcd Display
Charge voltage: 16.8V
Nominal voltage : 14.8V (4S7P)
Initial impedance : 120mΩ
Nominal capacity: 19.6Ah
Minimum capacity: 19.4Ah
Communication methods : SMBUS data communication
Electricity quantity show: LCD Electricity quantity show
Charge current: Standard Charging::0.2C5A (3.9A)
Rapid charge: 0.5C5A C(9.8A) Max
Standard Charging method : 3.9A(0.2C5A) CC(constant current)charge to 16.8V,then CV(constant voltage 16.8V)charge till charge current decline to ≤196mA(≈0.01C5A)
Charging time:Standard Charging: 6.5hours(Ref.)
Rapid charge: 3.5 hours(Ref.)
Max.discharge current: 9.8A(0.5C5A)
Discharge cut-off voltage: 10.0V
Cycle life (0.2C5A/0.2C5A) : 500 items,≧80%DOD; 300 times,≧80%DOD
Operating temperature : Charging: 0℃~45℃
Discharging:-20℃~+60℃
Li-ion Battery With LCD Display
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YFJ TECHNOLOGY (HK) CO.,LIMITED , http://www.yfjpower.com