Lumileds Accelerates the Efficiency of Spotlights and Downlights with CoBs in Industry Standard Footprint

Offered in industry standard footprints for drop-in replacement, the LUXEON CX Plus CoB achieves the highest system efficacy in spotlights and downlights

On March 7th, Lumileds introduced the LUXEON CX Plus CoB, an immediate, effortless upgrade to existing designs currently using legacy CoBs with a square footprint. LUXEON CX Plus CoB achieves excellent 120 lm/W system efficacy over a wide lumen package range of 500-7,000 lm. Key to this performance is the CoB’s metal core PCB substrate, which features 3X lower thermal resistance than competing solutions for superior efficiency and lumen maintenance.

The metal core PCB substrate of the LUXEON CX Plus CoBis also more flexible, ensuring the highest reliability in luminaire manufacturing. “With the LUXEON CX Plus CoB, luminaire makers have an immediate upgrade to higher efficiency while maintaining existing optics, clamps, and certification information. In addition, Lumileds metal core substrate is more flexible than ceramic solutions, so one can avoid the problem of chip-on-board cracking, which can occur during assembly,” said Ivan Tsoi, Product Manager for LUXEON CX Plus CoB.

(Lumileds/ LEDinside)

The LUXEON CX Plus CoB is offered in industry standard footprints for packages with 6, 9, 12 and 14 mm LESs (light emitting surfaces), ranging from 13.35 x 13.35 mm (6 mm LES) to 17.85 x 17.85 mm (12 and 14 mm LES). The CoBs are available in color temperatures ranging from 2700K to 5000K in 80 and 90 CRI. The LUXEON CX Plus CoB is available in 3-step MacAdam ellipse, ensuring uniform optical performance. All LUXEON CoBs are also hot-tested at 85°C, ensuring performance at real-world conditions.


For more information on Lumileds LUXEON CX Plus CoB, see

About Lumileds
Lumileds is the global leader in light engine technology. The company develops, manufactures and distributes groundbreaking LEDs and automotive lighting products that shatter the status quo and help customers gain and maintain a competitive edge. With a rich history of industry “firsts,” Lumileds is uniquely positioned to deliver lighting advancements well into the future by maintaining an unwavering focus on quality, innovation and reliability. 
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