Retail packaging focuses more on product display and user experience. It usually includes color boxes, hanging holes, product instructions, barcodes, and installation information, making it suitable for hardware stores, e-commerce platforms, and supermarkets. Bulk packaging focuses more on transportation efficiency and cost control. It usually uses PE bags, inner boxes, or master cartons for centralized packing, making it suitable for wholesalers, distributors, and project customers. The choice mainly depends on the sales channel, order quantity, and the customer’s branding requirements.