<![CDATA[In modern manufacturing industries, production efficiency and effectiveness are critical to maintaining competitiveness. Optimal lighting components, such as the LED AII 451, play an important role in supporting smooth industrial operations. However, the existing cover design for the LED AII 451 relies on conventional machining processes that are inefficient for large-scale production. This study applies the Quality Function Deployment (QFD) method to reengineer the LED AII 451 cover with the aim of improving manufacturing efficiency and user satisfaction. The research procedure comprised observation, problem identification, QFD-based data processing, data analysis, and product redesign. Mapping customer needs to technical parameters identified six improvement priorities, including reducing the number of components, selecting lightweight material (Delrin/PVC), and simplifying the assembly process. The redesigned cover reduced the total number of components from five to three, thereby lowering assembly complexity, minimizing inventory handling, and reducing potential failure points. Assembly trials showed that the average assembly time decreased from 12 min to 9 min, a 25% improvement, while production costs were reduced by 15% through lower material expenses and simplified manufacturing. Validation confirmed improvements in ergonomics, durability, and safety while preserving the product's aesthetic value. These findings demonstrate that QFD provides a concrete, quantitatively validated basis for design recommendations that enhance product safety, streamline manufacturing processes, and support industrial productivity.]]>
