Foldable Solar Panel 400W   Q1 Plus 400W Foldable Solar Panel is a high-power portable solar solution designed for home backup systems, off-grid use, and fast charging of large power stations. Built with high-efficiency monocrystalline cells (up to 23%) and MC4 connectors, it delivers strong and stable solar power in outdoor environments.   Features • 400W solar output (100W × 4) • High-efficiency monocrystalline cells (21–23%) • Foldable & portable design (4-fold) • MC4 connector • IP67 protection • Designed for high-capacity systems Specifications • Rated Power: 400W • Working Voltage: 44V • Working Current: 10A • Weight: 16.3 kg • Folded Size: 725 × 990 × 45 mm • Unfolded Size: 2617 × 990 × 30 mm • Warranty: 12 months Ideal for large portable power stations and home backup systems.