Under the AC system series, we have two different waves system, modifed sine wave and pure sine wave. The pure sine wave AC system is more stable, but the Modified Sine Wave system will has cheaper price and smaller size. Use series connection PWM charge circuit. Charge efficiency is 3%-6% higher than witnout PWM, gives longer life to products. Solar System,Solar Energy System,AC Gneration System,AC Inverter Guangzhou City Poojin Electronic Technology Co., Ltd. , https://www.inverter-belttt.com
On April 18, Tianmao Group passed the proposal to purchase 30 million shares of Xiangneng Hualei Optoelectronics Co., Ltd. held by Xinliyi Group Co., Ltd. at a price of 4.89 yuan/share (accounting for 8.11 of Hualei Optoelectronics' total share capital). %).
According to the data, Xiangneng Hualei Optoelectronics Co., Ltd. is a state-owned joint-stock company with a registered capital of 369 million yuan. It mainly deals in the production of LED epitaxial material products, chip devices, LED packaging and related application products, and sales of self-produced products. , undertake LED lighting engineering and provide related technical consultation and energy saving services. 
Tianmao Group's 147 million yuan stake in Hualei Optoelectronics to enter the LED industry
Tianmao Group (000627-CN) announced on the evening of June 17, the company received the "Certificate of Capital Contribution of Xiangneng Hualei Optoelectronics Co., Ltd." from Hualei Optoelectronics: Tianmao Industrial Group Co., Ltd. holds Xiangneng Hualei The 30 million shares of Optoelectronics Co., Ltd. is the fourth largest shareholder of Xiangneng Hualei Optoelectronics Co., Ltd.