Group 1 - The core issue revolves around the safety crisis triggered by the recall of 490,000 power banks by Romoss due to serious safety hazards, leading to the revocation of their 3C certification [2][3] - The recall specifically targets three main models produced between June 2023 and July 2024, indicating a significant design flaw related to defective battery cells that could cause overheating or even combustion [2][3] - The revocation of the 3C certification by national regulatory authorities has legal implications, prohibiting the sale and use of the affected products, highlighting a stark contrast to Romoss's previous claims of compliance [3] Group 2 - Real incidents of self-ignition have occurred, prompting some universities to ban the use of Romoss power banks in dormitories, underscoring the extreme risks associated with defective battery cells [4] - Consumers are advised to immediately stop using the recalled models and to be cautious with other models, as the overall safety reputation of the brand has been severely damaged [5][6] - The incident raises questions about the effectiveness of the certification system, suggesting a need for more dynamic monitoring of certified products to prevent such safety issues in the future [7] Group 3 - The trust crisis in the consumer market is evident, as users express concerns over the reliability of cost-effective products, leading to a shift towards verifying certification statuses through official channels [8] - The event serves as a reminder of the universal safety principles that must be adhered to in the electronics industry, emphasizing that safety should never be compromised for cost [9]