An LED Array is a core component of LED Illumination Systems, consisting of multiple individual LED chips arranged in specific patterns (linear, matrix, circular, etc.) on a common substrate. It serves as the primary light-emitting element that determines the system's luminous output, beam pattern, and color characteristics. Within the LED Illumination System, the array interfaces with drivers, heat sinks, and optical elements to create controlled, efficient illumination. The array's design allows for collective operation, enabling higher luminous flux, uniform light distribution, and thermal management through a shared substrate. Electrical connections (series/parallel) determine voltage/current requirements and failure modes. Typical parameters include input voltage of 12–24 V DC, power consumption of 5–50 W, luminous flux of 500–5000 lm (tested per IES LM-79), color temperature of 2700–6500 K, CRI of 80–95 (per CIE 13.3), operating temperature of -40–85 °C, ingress protection of IP54–IP65 (per IEC 60529), substrate material of aluminum, dimensions of 50×50–300×300 mm, weight of 50–500 g, and lifetime of 30000–50000 hours (L70 per IES LM-80). Materials include gallium arsenide (GaAs) semiconductor chips, aluminum or ceramic substrate, gold/copper bonding wires, phosphor coating (for white LEDs), and encapsulation epoxy/silicone. These values are reference ranges; verify model-specific specifications with the legal manufacturer or supplier before procurement. The array is a component, not a standalone luminaire, and requires integration with appropriate drivers and thermal management.
LED chips in the array convert electrical energy into light through electroluminescence when forward-biased. The arrangement allows for collective operation, enabling higher luminous flux, uniform light distribution, and thermal management through shared substrate. Electrical connections (series/parallel) determine voltage/current requirements and failure modes. The substrate provides mechanical support and heat spreading, while bonding wires connect chips electrically. Phosphor coating may convert blue light to white, and encapsulation protects against environmental factors.
