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Shiyou Electric was established in 2011 as a joint venture between Xiangtan Shitong Electric and Unitron from Holland. The company is committed to the development of the renewable energy, specializing in R&D and manufacture of wind power control system, solar power system, energy storage system, EV charging station and industrial automation products, etc. In 2022, it was awarded as China's “Specialized and Innovative Little Giant”.

The company focuses on independent research and development, it has more than 50 technicians in the R&D team, including doctors, masters, and bachelors, and it has gotten more than 100 patents so far.

Shenzhen UPSEN Electronic CO., LTD. is a subsidiary corporation of UPSEN Holdings CO., LTD., which is established in 2002 with the mission to accelerate the transition and development of new energy, and build a new energy world. We are a private high-tech enterprise integrating researching & development, production & operation and technical services as a whole. We already past ISO9001 international quality system certification, and established a complete quality system ranging from material source, process, assembling to testing.
UPSEN with over 200+ employees, 30+ professional researching & independent engineers with bachelor degreeor above and average 7+ years’ experience, we are priority than our peers developed unique products in market like three level inverter tech UPS in 2017 , Off Grid Solar Inverter workable without batteries in 2018, PF1 Output UPS in 2019 etc.
We exported to more than 80 countries and areas till now, and we have famous clients like China Mobile, China Tower, TP-Link, Bangla Phone LTD, Tigo(Millicom International Cellular SA), Liz Telecom and so on.

Sky Resources Solar Technology Co., Ltd. (SRS) was established on March 28, 2000 and belongs to the national high-technology enterprise. SRS has established 7 production bases and 27 branches in various places.
Main products: solar street light, solar flood light, solar garden light,solar lawn light,solar power system.
Our company has won more than 116 patents, 19 inventions, 2 gold awards, and participated in the drafting of 2 national standards, 7 industries and upgrade standards.
Our company also has won more than 130 national honor certificates and is in the leading position in the solar industry. SRS is one of the top10 solar street lighting brands in China.

As a Leading company, we are responsible for driving our business forward to the benefit of all our Customers and providing worldwide markets with a return on their investment commensurate with our valuation as a premier industrial company.
This will only be accomplished by our continued focus on quality, reliability, durability, vocational value and customer service.
Throughout our history, we have been a wellspring of innovation, creativity and technological advances. And I am proud to say, SOKOYO plans to continue its heritage of leadership in the markets we serve and in the communities where we live and work.
The efforts of our international operations continue to focus on expanding our market share outside of China mainland and we are pleased with the acceptance we are receiving. To that end, our market share continues to grow and our global footprint continues to expand. We have a number of promising new products in our research and development pipeline and new product production launches are drawing closer. We are always looking forward to connect our organization with qualified potential customers to take business development to a much higher level
As our company is ISO 9001 certified so we stay focused on providing confidence that quality requirements will be fulfilled, in this aspect we are not only preventing our products defects of being detected and rejected, but we even assure the quality earlier in the production processOur aim is not only delivering the product with good quality but we pay more attention to the customer customized specs to make sure that our customer receives what he requested in details

Solar Lighting International, Inc. is an industry leading designer and manufacturer of superior commercial solar lighting products. We have been producing quality solar lighting systems since 2004, when the X-35 series commercial solar light was released. SLI has a team of engineers committed to moving the industry into high quality commercial solar LED lighting. Our products are designed and engineered in the United States and are a symbol of high quality solar lighting solutions.
Solar Lighting International has offices in South Carolina and Amman, Jordan. We have a variety of selected installing partners in the US Virgin Islands, Puerto Rico, California, Arizona, Connecticut, Saudi Arabia and Bahrain. With a diverse group of contractors and partners SLI has a global force experienced in project analysis and implementation. Providing the ultimate in customer service, SLI has been blessed to have loyal and repeat customers. We hope you will join our vision and become part of the SLI family.