9 May 2017

Lumileds doubles flux of LUXEON CoB Core Range with new High Density option

LED maker Lumileds of San Jose, CA, USA has launched the LUXEON CoB Core Range – High Density, a family of chip-on-board (CoBs) LEDs with double the luminous flux of the LUXEON CoB Core Range (Gen 3) devices.

Focusing on the most popular light-emitting surface (LES) sizes for spot lighting applications (6mm, 9mm and 11mm), the High Density CoBs can achieve what is claimed to be the highest center-beam candlepower (CBCP, or punch) in narrow-beam (<20°) spotlight applications. “Our customers require the sharpest beams and precise beam control,” says Eric Senders, product line director for LUXEON CoB LEDs. “LUXEON CoB Core Range – High Density caters to this market by delivering the highest punch at low beam angles along with exceptional quality of light,” he claims.

Light quality of LUXEON CoB Core Range – High Density products is reflected in the 3-step MacAdam Ellipse color definition. Quality of light is also associated with the color over angle (CoA) of LEDs used in spotlight applications. When the CoA is high, a ‘halo effect’ is created, where a halo or yellowish ring around the spotlight can be seen, especially against a white wall. With the LUXEON CoB Core Range – High Density array, the color differences within the beam are minimal, eliminating the halo effect, says Lumileds.

LUXEON CoB Core Range – High Density offers a maximum flux of 2500lm from a 6mm LES, 5000lm from a 9mm LES, and 6000lm from an 11mm LES (at 3000K, 80 CRI). The arrays are offered over a color temperature range of 2700-5700K and color rendering index (CRI) of 70, 80 or 90. Lumileds claims that the CoBs provide the industry’s lowest thermal resistance, enabling smaller heat-sinks and optics for lower overall system cost. The MCPCB substrate is also more robust than ceramic substrates, which are subject to cracking upon assembly or use, adds the firm.

Tags: Lumileds

Visit:  www.lumileds.com/LUXEONCoBCoreRange