400W of Solar Power: Watch solar power performance in action with SOLIX PS400—even quickly charging Anker portable power stations. Up to 23% Conversion Efficiency: You’ll notice 1.5X faster charging times thanks to monocrystalline solar cells and a powerful sunlight-trapping surface. 4 Set Angles for Max Sunlight Absorption: No matter where you are, the season, or time of day, you can maximize sunlight absorption. Easily switch between 30°, 40°, 50°, or 80° angles IP67 Waterproof Protection: With an IP67 waterproof design, you can camp without fear and enjoy the adventure with SOLIX PS400 Solar Panel.