Renogy 4 -Module 41.8-in x 20.9-in 400-Watt Solar Panel

4 -Module 41.8-in x 20.9-in 400-Watt Solar Panel. High solar cell efficiency : Monocrystalline Silicon 22% Cell Conversion Efficiency, Bypass diodes minimize power drop caused by shade and ensure excellent performance in low-light environments.. EL tested solar modules; no hot-spot heating guaranteed, Corrosion-resistant aluminum frame for extended outdoor use, TPT back sheet dissipates excess heat, ensuring smooth output performance, IP65 rated junction box provides complete protection against environmental particles and low pressure water jets.. Sealed, Gel, Flooded and Lithium battery charging algorithm ready 4-Stage battery charging process for a rapid, efficient, and safe battery charging, Remote monitoring and control via Bluetooth.. The Renogy Adventurer is equipped with multiple electronic protections: reverse current, overcharging, short-circuit and reversed polarity, Pre-drilled holes on the back frame allow for fast and secure mounting.. The Renogy Adventurer 30A Charge Controller can expand your system power up to a maximum of 400W.