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New Lumileds CoBs deliver up to 30000 lumens

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Luxeon high output LEDs suit streetlights, stadium lights and high bay and low bay fixtures

Lumileds has announced the addition of three new products to its Luxeon CoB Core Range to satisfy high lumen output applications such as streetlights, stadium lights and high bay and low bay fixtures.

"We now have the ability to address not only 40 and 50W applications but up to 100W and 120W applications with these high lumen packages, at the same high efficacy as our Luxeon CoB Core Range (Gen 3) products," said Eric Senders, product line director for the Luxeon CoB Family.

The high lumen extension of the Luxeon CoB Core Range (Gen 3) features light emitting surfaces (LES) of 23, 29 and 32 mm, nominal fluxes of 8,800, 11,000 and 16,000 lm at drive currents of 1.2, 2.1 and 2.2 A, plus efficacy up to 161 lm/W.

The arrays are offered over a colour temperature range of 2700K to 5700K and CRI of 70, 80 or 90, with an efficient 70 CRI solution in warmer 3000K for outdoor lighting as well as a special colour requirement for studios and stadiums where cool colour temperatures and high (>90) CRI are required.

The CoBs are mounted on square Metal Core PCBs (MCPCBs), which are claimed to provide the industry's lowest thermal resistance, enabling smaller heat sinks and optics for lower overall system cost.

"Feedback from many CoB customers indicates that heat sinks alone make up a substantial portion of system cost. By keeping the LES as small as possible and having a low thermal resistance substrate, a smaller heat sink can be used and a good portion of the cost has been removed from the system," said Senders.

The Luxeon CoB Core Range (Gen 3) CoBs are compatible with an existing ecosystem of optic, drivers and holders.

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