Cree LED breakthrough promises lower-cost incandescent quality
Cree claims to have achieved a 25% increase in lumens per watt compared to production LEDs of similar color quality under operating conditions found in real-world LED lighting applications. The solution, coupled with Cree’s latest SC5 Technology platform, will lead to LED systems with increased performance, lower cost, and better light, according to the company.
"Today, advancing LED technology goes beyond just increasing LPW," said John Edmond, Cree co-founder and director of advanced optoelectronics in a statement. "Cree is also focused on improving spectral content and the efficacy of warmer color temperatures while pursuing tremendous opportunities to increase LPW at real-world operating conditions. This R&D result continues Cree’s high-power LED technology innovation and provides a path to better lighting experiences at the lowest overall system cost."
Many of today’s LEDs that provide excellent light quality do so by compromising LED efficacy, resulting in lower system performance or higher system cost. Cree’s innovation demonstrates a no-compromise solution that enables high quality light at the lowest cost.
As an example of what Cree’s technology could achieve, a current 60-W LED replacement lamp with average light quality (3000K CCT & 80 CRI) could be upgraded to incandescent-like light quality (2700K CCT, 90+ CRI & 90+ R9) with the same light output and power consumption levels at no additional cost.
Cree reports that the R&D LED performance was measured at 1587 lumens at 350 mA and junction temperature of 85°C, delivering 134 LPW with a CRI Ra > 90 and R9 > 90 at 2700 K CCT.