The 390 watt CS3U-390MS solar panel features reliable Monocrystalline PERC solar cells with an efficient 144 cell 4BB 4-busbar design. A crossbar enhanced 35mm frame ensures the robustness of this solar panel for up to a 5400 Pa snow load and a wind load up to 3600 Pa. Canadian Solar KuMax CS3U solar panel Canadian Solar has developed an innovative cool module design, KuMax solar panels. Based on Low Internal Current (LIC) module technology – this the next generation of module technology. Ensured by over 15 years of experience in module manufacturing, KuMax CS3U solar panels feature a well-engineered module design, stringent BOM quality testing, an automated manufacturing process and 100% EL testing. Reliable 4BB Monocrystalline PERC solar cells Sturdy crossbar enhanced anodized aluminum alloy frame PV wire w/ T4 (MC4 comparable) connectors Reassuring power tolerance of +5W 5400 Pa snow load rating KuMax 144-cell solar panels are ideal for: Canadian Solar CS6U MaxPower solar panel power farm Canadian Solar CS3U KuMax solar panels feature robust module construction making them suitable for harsh environments. On-grid commercial / industrial rooftops On-grid residential ground mount solar systems Solar power stations, solar carports Other on-grid applications KuMax Solar Panel Certifications Management System Certificates ISO 9001:2015 / Quality Management System ISO 14001:2015 / Standards for environmental management system OHSAS 18001:2007 / International standards for occupational health & safety Product Certificates Canadian Solar solar power contractor IEC 61215 / IEC 61730: VDE / CE / MCS / CEC AU UL 1703 / IEC 61215 performance: CEC listed (US) / FSEC (US Florida) UL 1703: CSA / IEC61701 ED2: VDE / IEC62716: VDE / IEC60068-2-68: SGS Take-e-way