4 December 2012

Lumileds’ LUXEON T LED delivers performance and precise beam control for directional & efficacy-driven applications

Building on its innovations of hot testing and ‘Freedom from Binning’, LED maker Philips Lumileds of San Jose, CA, USA has launched LUXEON T, its next-generation illumination-grade LED which is tested and specified at 85°C to ensure in-application performance with tight color control, to within 3-Step MacAdams (SDCM).

Optimized for efficacy and supported by what is claimed to be an industry-leading low forward voltage of 2.7V and the lowest thermal resistance of 3 Kelvin per watt, Lumileds reckons that the LUXEON T allows the highest possible system efficacy and the flexibility to reduce the number of emitters, without compromising on high color rendering index (CRI) across the full correlated color temperature (CCT) range of 2700-5000K.

“With its high efficacy and luminance, LUXEON T is ideal for directional applications such as MR16 and PAR retrofit lamps,” says product line director Kathleen Hartnett. “LUXEON T is able to deliver high center-beam candle power (CBCP) and precise optical control, which are required to deliver the narrow beams desired for these systems.”

LUXEON T delivers luminous efficacy of up to 140 lumens per watt at a drive current of 350mA (at 85°C) in neutral white at a CCT of 5000K and a CRI of 80 (minimum) from a compact 3.7mm x 3.7mm package. Lumileds says that the performance is realized through more tightly controlled epitaxial growth (delivering what is claimed to be leading wall-plug efficiency and hot cold factor), new phosphors to enhance conversion efficiency, and package optimization (for light extraction and the lowest thermal resistance).

LUXEON T is now available in five different CCTs (2700K, 3000K, 3500K, 4000K and 5000K), all specified at high CRI (80 minimum). In addition to the 80-CRI range, LUXEON T is also available with a typical CRI of 95 and exceptional red rendering (R9) of 90, making it suitable for the professional lighting market. To enable system-level performance improvements in outdoor and industrial applications (including high-bay, street and roadway lighting), in January the LUXEON T will be extended to the 70 CRI range.

Tags: Philips Lumileds LEDs

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