BougeRV 400W 16BB mono solar panel uses advanced N-type cell technology to deliver up to 25% efficiency and reliable high output. Its 16-busbar design improves energy capture and performance in low light, while the bifacial structure generates extra power from both sides. Built for durability, the 400W bifacial solar panel offers a lifespan of up to 30 years, making it a strong choice for RVs, off-grid setups, and home solar systems.