*Note: Purchasing a single 125W solar panel does not include a protective bag. The protective bag is only included when buying 2 or 4 solar panels.. Modular design: Max parallel connection of 8 panels (1000W). Adjustable angle (30-60°) for optimal solar energy collection. Up to 25% conversion efficiency. STC 125W，BNPI 138W. TOPCon solar cells perform well in low light and high temperatures. Built to last with an IP68 waterproof rating. Versatile use for home, backyard, and RV setups. Lightweight: 4 panels weigh only 16.2kg. Up to 5-year warranty and 30-year lifespan*Note: Purchasing a single 125W solar panel does not include a protective bag. The protective bag is only included when buying 2 or 4 solar panels.. Modular design: Max parallel connection of 8 panels (1000W). Adjustable angle (30-60°) for optimal solar energy collection. Up to 25% conversion efficiency. STC 125W，BNPI 138W. TOPCon solar cells perform well in low light and high temperatures. Built to last with an IP68 waterproof rating. Versatile use for home, backyard, and RV setups. Lightweight: 4 panels weigh only 16.2kg. Up to 5-year warranty and 30-year lifespan