As a manufacturer with over 10 years of experience, Shenzhen Sunray Electronic Co., Ltd. has more than 10 production lines which can produce 100,000 pieces of UPS every month. Over 10% of our staff members are engineers and professional technicians and more than 400 are skilled workers. Our company specializes in the research, manufacture and marketing of power supply products and lead acid batteries with different capacities. We manufacture online UPS with double-conversion and PFC, offline UPS with AVR and CPU control and inverters with the latest technology. Our UPS, power products and...