Swiss Piega's new flagship Master Line Source is pr…

Fans familiar with the Swiss audio brand Piega should know that the flat diaphragm tweeter is the biggest feature of his speaker. The factory is called “Linear Drive Ribbon”, which is not only extremely high-frequency extension, but also bigger than the average tweeter. Many of the di

Incandescent lamp market is difficult to find LED light…

According to the "China's roadmap for phasing out incandescent lamps", it is forbidden to import and sell ordinary lighting incandescent lamps of 100 watts or more from October 1 last year. The reporter recently visited the major supermarkets and home improvement markets in the city a

Domestic brands of home appliances accelerate interneti…

It is understood that after the adjustment of shipments in September and October, most of the current home appliance manufacturers have already digested the negative impact of the withdrawal of home appliance preferential policies. By taking advantage of this energy-saving subsidy policy,

Design Scheme of Filament Power Supply of Electron Beam…

The traditional electron beam welding machine power system adopts the power frequency or intermediate frequency technology, and has the disadvantages of large volume, low efficiency and poor beam stability. Analyze the shortcomings of the current power supply of electron beam

Huacan Optoelectronics estimates that the net profit in…

Huacan Optoelectronics released the results forecast for the first three quarters of 2013. The company estimates that the net profit attributable to shareholders of listed companies is about 8 million yuan to 12 million yuan, down from the same period of the previous year's 4,209,170 yuan: 71.4

China and the United States sign a green data energy ef…

Recently, the 4th China-US Energy Efficiency Forum was held in Washington, DC. Xie Zhenhua, deputy director of the National Development and Reform Commission, David, Assistant Secretary of Energy Efficiency and Renewable Energy of the US Department of Energy, and Todd Stern, Special Envoy of the US

Application of LED lighting fixtures on rail vehicles

1 Introduction In recent years, with the application of green lighting for the purpose of saving energy and protecting the environment. LED is the abbreviation of LightEmitting Diode. It has been around since the 1960s. After the 1980s, it has been widely used in low illumination