Lumileds LUXEON CoB Core Range (Gen 4) LEDs

The LUXEON CoB Core Range (Gen 4) LEDs, from Lumileds, offer high flux densities in a small light-emitting surface (LES), enabling double the luminous flux of the third generation of LUXEON CoB Core Range devices. The high-density CoBs can achieve high centre beam candlepower (CBCP) in narrow-beam (less than 20°) spotlight applications.

The LEDs feature a single optical LES of 13, 15 or 19 mm that provides high flux densities and high efficacy. LED arrays are offered over a colour temperature of 3000 to 4000K and CRI of 80 or 90. The CoBs provide low thermal resistance, thus enabling smaller heat sinks and optics. The MCPCB substrate is also more robust than ceramic substrates that are subject to cracking on assembly or use, according to the company.

The LED devices are binned with a single 3-step (80 and 90 colour index rating) MacAdam ellipse to ensure optical performance in retrofit lamps and spotlight applications. They are hot-tested at 85°C, so that luminaire design is simplified and testing can be minimised.

The LEDs are designed for a broad array of general-purpose and directional lighting applications, including architectural lighting, downlights, high- and low-bay fixtures, and spotlights.