Nature

Highly efficient hybrid warm white organic light-emitting diodes using a blue thermally activated delayed fluorescence emitter: exploiting the external heavy-atom effect

To attain high efficiencies in hybrid white organic light-emitting diodes (WOLEDs), mutual quenching of the fluorophors and phosphors should be minimized. Efforts have been devoted to reducing the ...
Electronics Weekly

LED lighting output standards needed

Poorly designed metrics hinder the development of efficient lighting technologies, writes Adrian Rawlinson, managing director of Marl InternationalUnder the stricter requirements of Part L of the UK ...
Mongabay

Let there be light — but be mindful of the wildlife

Artificial lights affect biological processes, such as plant photosynthesis, animals’ orientation and migrations, and human circadian rhythms. As communities replace older lights with energy-efficient ...
Consumer Reports

Cree Lighting 9.5-Watt (60W) A19 Warm White Dimmable LED Lightbulb

Unlock to see our ratings and compare products side by side Actual 3K or 12.5K color temperature (kelvin) is the average measured color temperature of 10 bulb samples. Those with 2700 K are closest to ...
Electronics Weekly

Comment: LED lighting output standards needed

Poorly designed metrics hinder the development of efficient lighting technologies, writes Adrian Rawlinson, managing director of Marl International Poorly designed metrics hinder the development of ...