Product Name: Yangtze 4kw Solar Panel Hybrid DC System for Home Model NO.: YS4KW-Hybrid Specification: Normal Application: Home, Industrial, Commercial Certification: ISO, CE, TUV, Cec, IEC61215, IEC61730 Condition: New System Warranty: 25 Years AC Frequency: 50 or 60 Hz Load Power: 4kw AC Connection: 1 Phase or 3 Phase System Efficiency: More Than 90% Output Voltage: 220V 230V 240V 380V 400V OEM Order: Acceptable Life Span: 30 Years Working Time: 24 Hours Trademark: Yangtze Solar Transport Package: Carton, Box, Pallet Specification: 4kw Origin: China HS Code: 8541402000 Product Description ***** Factory Introduction *****♦ Founded in 1994 ,300MW solar panel production capacity ,solar panel power range 3watt to 510watt for both polycrystalline and monocrystalline solar panel , On-grid solar system , Off-Grid Solar System , Hybrid System♦ 10 years total workmanship and materials warranty ,10 years for at least 90% and 25 years for 80% linear power output warranty ♦ 100% EL test before package and shipping♦ Two factories ,solar panel factory ,battery factory♦ Cooperated with world famous big companies like Jinko Solar , Tesla , SMA, Canadian Solar ,HUAWEI♦ Products are exported to more than 150 countries♦ Products are certified by TUV(Germany) ,UL(America) ,CE♦ Turn-key solar systems are offered ,to save the time and money for the clients ♦ Rich experience in overseas construction of solar projects