When sourcing container hotels, you must prioritize structural integrity and insulation. Ensure the units use galvanized steel frames to prevent rust and corrosion, especially in humid or coastal areas. For insulation, polyurethane (PU) sandwich panels or rock wool are essential to maintain thermal efficiency. Additionally, verify that the floor loading capacity meets international standards (typically ≥250kg/m²) and that the electrical systems are pre-installed according to your target country's voltage and socket standards.