400W of Solar Power: With the SOLIX PS400, you can observe how solar power performs, even swiftly charging Anker portable power stations. Up to 23% Conversion Efficiency: With monocrystalline solar cells and a strong sunlight-trapping surface, you'll notice 1.5X faster charging times. 4 Set Angles for Maximum Sunlight Absorption: You can optimize sunlight absorption regardless of the time of day, season, or location. Changing between 30°, 40°, 50°, or 80° angles is simple. IP67 Waterproof Protection: The SOLIX PS400 Solar Panel's IP67 waterproof design allows you to camp fearlessly and relish the experience.