Zhejiang Ouyou Electronics Co., Ltd., also known as Zhejiang Earu Electronics, is a professional manufacturer specializing in the design and production of electrical components and smart energy solutions. Based in Wenzhou, China, and established in 2015, the company operates a 3,000-5,000 square meter factory equipped with 10 production lines. They maintain a workforce of 51 to 100 employees and generate an annual revenue between US$50 million and US$100 million.
The company's extensive product portfolio focuses on smart devices and traditional electrical protection, including WiFi Smart circuit breakers, energy meters, contactors, relays, and voltage protectors. Specific product categories include Smart MCBs, Tuya-integrated energy meters, surge protective devices (SPD), fuse holders, transfer switches, and combiner boxes. As a contract manufacturer, Zhejiang Ouyou Electronics provides comprehensive OEM and ODM services, catering to a global clientele that includes Fortune 500 companies.
Verified by SGS Group, the company implements rigorous quality control measures, including raw material traceability and finished product inspection. They are a significant player in international trade, exporting to diverse markets across North America, Europe, Southeast Asia, and the Middle East. Their technical capabilities extend to advanced IoT integration, offering ZigBee and WiFi-enabled smart energy management systems for modern electrical infrastructure.
EAG40-C1P+N AC SPD 20KA~40KA 275V House Surge Protector protection Protective Low-voltage Arrester Device SPD1P+N-40$3.25
EARU 4 Input 2 Output Solar Photovoltaic PV Combiner Box With Surge Lightning Protection DC Fuse MCB SPD Waterproof Box IP65$37.87
AC90V-240V 3A Water Electric Floor Heating TRV House Room Thermostat Temperature Controller Digital LCD Display Wall Mounted$6.03
AC90V-240V 16A Water Electric Floor Heating TRV House Room Thermostat Temperature Controller Digital LCD Display Wall Mounted$6.59
4P 3 Phase 4 Wires Two-way Bilateral Energy Meter Electricity Usage Meter Din Rail AC 3*230/400V LCD Multifunction Display EA771$14.51
EARU 500V 2 Input 2 Output 2 String for Off Grid Solar Energy System Photovoltaic Array Solar PV Combiner Box DC Circuit Breaker$29.39
500V 4 Input 4 Output Solar Photovoltaic PV Combiner Box Protection DC Fuse MCB SPD Waterproof Box IP65 With Lightning$47.29
EARU Tuya Smart Zigbee Two-way Bilateral Energy Meter 80A AC110V 220V Clamp CT KWh Power Electricity Consumption Monitor$16.67
1P DC 1000V China MCB Solar Mini Circuit Breaker Overload Protection Switch Photovoltaic PV DC Circuit Breaker for Solar System$0.94
1000V 1P Solar Mini Air Circuit Breaker Overload Protection Switch 80A 100A 125A Photovoltaic MCB PV DC CBM 125A Circuit Breaker$1.6
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Guolong Electric Co., Ltd. is a professional manufacturer and trading company headquartered in Yueqing, China, with a specialized solar manufacturing base in Shenzhen. Established in 2004 and evolving from roots dating back to 1983, the company has grown into a national scientific and technological innovation enterprise with a registered capital of 80 million RMB. The company employs between 101 and 200 professionals and operates a factory equipped with advanced processing and testing equipment to support its R&D, manufacturing, and installation services.
Wall Mounted 100ah 200ah 5Kwh Home Battery Solar Energy Storage Lifepo4 for Powerwall for Solar Systems CAN Communication Port$571
5.5kw 6.2kw 48v 12 Parallel Inverters 1 Phase 3 Phase Inverter Solar Inverter with Mppt Solar Charge Controller$375
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Folding Solar Panels MPPT Monocrystalline Silicon Lithium Ion Battery Mini All One Portable Outdoor Home Solar Power System Kit$275
All-in-one Solar Power System Stackable 1kw 3kw 5KW 1.28KWH 2.56KWH Off-Grid Solar Storage System With Inverter Battery$445
Manyu Solar 25.6V 100ah 200ah 2.56KWh LiFePO4 Split CAN Hybrid Grid Home Battery Solar Energy Storage$298
Wall Mounted 51.2V LiFePO4 Battery 5KWH 20KWH Hybrid Grid Connection CAN for Home Energy Storage Solar Backup Power$689
Single Output 300W-8000W Solar Inverter Power Supply 12/24/48v DC to AC Inverter$29.9
2020 Factory Direct Sale High Quality PA66 Mini Circuit Breaker 12,3,4P 63A MCB Wholesale$3.99
Manyu Hybrid Inverter 1.6kW 3.0kW Solar Charge Controller off Grid Power Converter Single Output High Efficiency$129
Manyu Solar 8.2KW 10.2KW 160A Single Phase MPPT Solar Inverters Hybrid On/Off Grid for Residential Solar System$335
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