Info
Info
News Article

Cree Breaks LED Lumens Per Watt Record

25 percent increase over production LEDs of similar colour quality

Cree has demonstrated a single high-power LED delivering nearly 1,600 lumens at 134 lumens-per-watt (LPW) which it says has similar colour quality as an incandescent light bulb. 

The R&D LED performance was measured at 1587 lumens at 350mA and junction temperature of 85degC, delivering 134 LPW with a CRI Ra > 90 and R9 > 90 at 2700K CCT.

With this result, the company says it has achieved a breakthrough 25 percent increase in lumens per watt (LPW) over production LEDs of similar colour quality under operating conditions found in real-world LED lighting applications.

"Today, advancing LED technology goes beyond just increasing LPW," said John Edmond, Cree co-founder and director of advanced optoelectronics. "Cree is also focused on improving spectral content and the efficacy of warmer colour 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."

As an example of what Cree's technology could achieve, a current 60W LED replacement lamp with average light quality (3000K CCT and 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. 

The recently approved California Title 20 appliance standard for LED bulbs highlights the importance of this type of performance without cost and energy savings compromises.



AngelTech Live III: Join us on 12 April 2021!

AngelTech Live III will be broadcast on 12 April 2021, 10am BST, rebroadcast on 14 April (10am CTT) and 16 April (10am PST) and will feature online versions of the market-leading physical events: CS International and PIC International PLUS a brand new Silicon Semiconductor International Track!

Thanks to the great diversity of the semiconductor industry, we are always chasing new markets and developing a range of exciting technologies.

2021 is no different. Over the last few months interest in deep-UV LEDs has rocketed, due to its capability to disinfect and sanitise areas and combat Covid-19. We shall consider a roadmap for this device, along with technologies for boosting its output.

We shall also look at microLEDs, a display with many wonderful attributes, identifying processes for handling the mass transfer of tiny emitters that hold the key to commercialisation of this technology.

We shall also discuss electrification of transportation, underpinned by wide bandgap power electronics and supported by blue lasers that are ideal for processing copper.

Additional areas we will cover include the development of GaN ICs, to improve the reach of power electronics; the great strides that have been made with gallium oxide; and a look at new materials, such as cubic GaN and AlScN.

Having attracted 1500 delegates over the last 2 online summits, the 3rd event promises to be even bigger and better – with 3 interactive sessions over 1 day and will once again prove to be a key event across the semiconductor and photonic integrated circuits calendar.

So make sure you sign up today and discover the latest cutting edge developments across the compound semiconductor and integrated photonics value chain.

REGISTER FOR FREE

VIEW SESSIONS

Info
×
Search the news archive

To close this popup you can press escape or click the close icon.
×
Logo
×
Register - Step 1

You may choose to subscribe to the Compound Semiconductor Magazine, the Compound Semiconductor Newsletter, or both. You may also request additional information if required, before submitting your application.


Please subscribe me to:

 

You chose the industry type of "Other"

Please enter the industry that you work in:
Please enter the industry that you work in:
 
X
Info
X
Info
{taasPodcastNotification}
Live Event