Philips Lumileds CoB Arrays Hit 10,000 lm at 100 lm/W for Downlights and Outdoor/Industrial Fixtures — LED professional - LED Lighting Technology, Application Magazine
Philips LED pirn 40W A60 E27 WW 230V FR - 8718696577097 - LED valgustid ja valgusallikad - Ledpood.ee - Valgustus tegijatelt
Philips goes for 210 lm/W bulbs with fanfare, but could have done it earlier
Cree, Philips Lumileds, and Luminus Devices extend COB LED technology | LEDs Magazine