Lumileds LUXEON CoB Core Range (Gen 5) High Lumen Arrays are uniform, high-efficacy (171lm/W to 183lm/W), easy-to-design arrays with a small Light Emitting Surface (LES). With industry-leading thermal resistance and small size, these arrays enable simplified and cost-efficient luminaire designs. The hot-tested (at +85°C) LUXEON CoB LEDs are available in a 3-step MacAdam ellipse, ensuring uniform optical performance in various applications.