Crecimiento impulsado por la innovación: la tecnología de fundición a presión revoluciona la industria de la iluminación

As the global lighting industry accelerates toward intelligence, greenization, and high integration, lighting die-casting parts have evolved from simple structural supports to multi-functional core components, integrating heat management, electromagnetic compatibility, and aesthetic expression. Valued at approximately 18 billion yuan globally in 2025, the lighting die-casting market is projected to maintain a CAGR of 6.2%, driven by surging demand from commercial, residential, and outdoor lighting sectors. Die-casting technology, with its advantages of high precision, high efficiency, and cost-effectiveness, has become the cornerstone of modern lighting manufacturing, empowering the industry’s transformation and upgrading.

Aluminum alloy lighting die-casting parts dominate the market, accounting for over 65% of total output, thanks to their excellent thermal conductivity, lightweight properties, and compatibility with surface treatment processes. Traditional alloys such as ADC12 and A380 are widely used in ordinary lighting fixtures, while high thermal conductivity aluminum alloys like AlSi10Mg and AlCu4Ti are increasingly applied in high-end lighting products. These high-performance alloys have a thermal conductivity of 160–180 W/(m·K), nearly double that of conventional ADC12, which can reduce LED junction temperature by 12–18℃ and extend light source life by more than 30% . Die-casting enables one-piece molding of complex geometric structures, integrating light source mounts, drive power cavities, and optical lens buckles into a single component, significantly simplifying assembly processes and reducing supply chain complexity.

Die-casting molds are the core of high-quality lighting die-casting parts, with precision and durability directly determining product performance. Leading manufacturers adopt high-grade mold steels and precision machining technologies to produce die-casting molds with dimensional accuracy within ±0.05mm, ensuring consistent quality of die-cast lighting components. Digital simulation tools and digital twin technology are widely used in mold design, optimizing cooling channels and gating systems to minimize die-casting defects such as pores and shrinkage, and shortening mold development cycles by 40% . For modular lighting products, flexible die-casting mold designs support quick switching between component variants, meeting customized production needs.

Technological innovation is continuously breaking through the performance boundaries of lighting die-casting. Semi-solid die-casting and vacuumdie-casting technologies are gradually popularized, effectively improving the density and mechanical properties of die-cast parts, making them suitable for high-power LED lighting and harsh outdoor environments. Micro-arc oxidation, PVD, and nano-coloring surface treatment technologies are widely applied to lighting die-casting parts, achieving precise color control and diverse texture effects, which meet consumers’ growing demand for aesthetic appearance . In addition, AI-driven generative design optimizes the structure ofdie-cast components, reducing weight by 34% while improving heat dissipation efficiency by 41% for high-end street lamp die-casting parts.

Sustainability has become a key driver of the lighting die-casting industry’s development. Under the background of global “dual carbon” goals, the proportion of recycled aluminum used in lighting die-casting parts has reached 35% or more, reducing carbon emissions by over 60% compared with primary aluminum . Energy-efficient die-casting presses and closed-loop water cooling systems further reduce the industry’s environmental footprint, helping lighting manufacturers meet ESG compliance requirements. China, as the world’s largest producer and exporter of lighting products, accounts for nearly 40% of the global lighting die-casting supply, with industrial clusters formed in Guangdong, Zhejiang, and Jiangsu provinces, relying on a complete industrial chain to provide high-quality die-cast lighting components for the global market.

The downstream application scenarios of lighting die-casting parts are constantly expanding. In outdoor lighting, die-cast lamp bodies integrate heat dissipation fins, waterproof junction boxes, and mounting flanges, achieving IP66 or higher protection levels and adapting to harsh environments such as high humidity and salt spray . In smart home lighting, lighting die-casting parts need to integrate Wi-Fi 6 antenna clear areas and EMC shielding cavities within ultra-thin wall thicknesses, meeting the requirements of intelligent integration. Commercial lighting pays more attention to the customization and reliability of die-cast components, driving the industry to move towards system-level intelligent node development.

Looking ahead, the lighting die-casting industry will focus on the in-depth integration of materials, processes, design, and scenarios. With the popularization of Mini-LED, COB, and laser lighting technologies, die-casting technology will face higher requirements for heat dissipation and structural integration. Enterprises mastering core die-casting mold technology and sustainable production capabilities will gain a competitive advantage. It is expected that by 2027, the market scale of high thermal conductivity die-casting aluminum alloys in the lighting industry will exceed 2.8 billion yuan, with a CAGR of 14.2%, continuing to support the high-quality development of the global lighting industry.