When sourcing innovative products, you must prioritize technical documentation and prototype validation. Request a detailed Product Requirement Document (PRD) and verify if the supplier holds patents or intellectual property rights to avoid legal risks. Ensure the product has passed rigorous R&D testing, such as stress tests, aging tests, and environmental adaptability tests. For electronics, check for PCB layout quality and the use of branded core components (e.g., chips or sensors) to ensure long-term stability.