Choose SolarEpoch 400P ($429) if:
You prioritize​lightweight portability, quick setup, and versatility for camping, hiking, or RVs. Durability and wind resistance matter most.
Choose SolarEpoch 400 ($389) if:
You need a stable, stationary solution (e.g., home backup or carport). Budget constraints are a priority, and you don’t mind a slightly heavier, less adjustable panel.