Built for the great outdoors, this IP65-rated solar panel withstands rain, snow, wind, and heat. Built-in Battery Capacity 4000mAh No Built-in Battery 5000mAh No Built-in Battery No Built-in Battery 5200mAh No Built-in Battery.

Built for the great outdoors, this IP65-rated solar panel withstands rain, snow, wind, and heat. 【Performance】4W High-Efficiency Monocrystalline. Unlike standard 2W panels, our upgraded 4W surface maximizes energy absorption even in low-light or cloudy conditions.