Shenzhen UPSEN Electric CO., Ltd. Was established in 2002, which locates in south of China, Shenzhen City, close to Pearl of the Orient HK, with beautiful environment and convenient transport. We are an expert manufacturer and Factory of Backup Power Products with: 7 Production lines, 10 Years of expertise 50 Countries and markets current 280 Experienced Workers, 30 Professional Engineers Free OEM Service, Fast lead time 3-15 days, High Quality (CE&ISO) Our website ***** Our Products: 1: Offline UPS with AVR Function (Line Interactive UPS) 400Va-1500Va 2: Online UPS 1Kva-400Kva 3: Power& Solar Inverter 300W-6KW 4: MPPT Solar Charge Controller New & Popular 5: Accessories: UPS&Solar Battery, Battery Cabinet, SNMP Card, AS400 We already past ISO9001 international quality system certification, and established a complete quality system ranging from material source, process, assembling to testing. Hope to make Integrity and Double-Win business with you, and to be your professional power supplier and solve your any power problems.