Since we began in 1989, our goal has been to provide high quality products for customers worldwide. To accomplish this, we purchase quality materials from Mitsubishi and conduct rigid quality checks to ensure the best materials are used in production. Extensive technical exchanges with well-known, domestic universities like Zhejiang University, South China University of Technology, and others, help us maintain technical leadership in our field and ensure the superior performance of our products. The use of advanced SMT workshops results in improved reliability of our online UPS, low frequency UPS, and other products. Full inspections on finished products are performed to guarantee that only 100 percent qualified line interactive UPS and solar charge controller reaches our customers. As a result of these measures, our high quality products have received CE, FCC and UL certifications. It is important at STAR Electronics INC. for us to keep our costs low while maintaining quality, so we can offer our products at the most economic prices. By purchasing raw materials in bulk quantities, we reduce our material cost. The use of sophisticated, automatic production equipment improves our work efficiency and lowers labor cost. Our location in Shenzhen City in Guangdong Province is close to the Shenzhen and Guangzhou ports, giving us easy access to convenient transportation by sea, air and land. This lowers our shipping cost and also reduces shipping charges for our clients. All these factors contribute to the competitive prices of our quality outdoor UPS, inverter, AVR servo type stabilizer, and related products. In addition to high quality and competitively priced power supply products, customers can expect excellent service at STAR Electronics INC.. We offer customized power supply solutions, free of charge. Our products come with warranties ranging from one to five years, during which we provide free repair parts and solutions to any technical problems. upspowerincn.com