Craig DiLouie

Cree, Inc. recently demonstrated 303 lumens/W from a white high power LED. Reaching the landmark achievement faster than predicted, this result surpasses Cree’s previous R&D industry best of 276 lumens per watt announced just over a year ago. Cree reported that the LED efficacy was measured at 303 lumens/W, at a correlated color temperature of [...]

Acuity Brands’ Marker Light Series concept OLED luminaires create a directional beacon in high traffic areas, add visual appeal, provide subtle orientation along a movement path, and provide low-level illumination in critical care areas as part of a 24-hour lighting scheme. The series also demonstrates use of an amber OLED at a 590 nm peak [...]

The Jonathan Speirs Scholarship Fund (JSSF) is a UK-registered charity which provides support to students of architecture who wish to enter the architectural lighting design profession. It has been set up at the request of the late Jonathan Speirs, who passed away two years ago, on June 18. The aim of the charity is to [...]

Republication of Postings from the U.S. Department of Energy (DOE) Solid-State Lighting Program by Jim Brodrick, U.S. Department of Energy If you attended LIGHTFAIR International last week in Las Vegas, we hope you got a chance to stop by DOE’s booth and catch our SSL educational presentations that played to SRO crowds throughout the show. [...]

Online attendee registration is now open for Greenbuild, the sustainability conference, which will be held in New Orleans (great city) this year. Click here to register.

The California Lighting Technology Center recently tested 26 LED A-lamp products marketed as alternatives to 60W incandescent A-lamps. Data collected on power (W), voltage (V), luminous output (lumens), correlated color temperature (CCT), color rendering index (CRI), rated life, and dimming performance allowed for comparison with manufacturers’ claims as well as current lamp quality standards. The [...]

Wireless Environment’s SwitchSense Bulb Adapter is designed to enable LED and CFL lamps to operate for up to three hours during a power outage. When power is available, the product constantly stores power in an embedded battery using a trickle charge. Onboard intelligence detects a failure of power and switches to backup power, during which [...]

AT LIGHTFAIR, DOE experts presented on a wide range of solid-state lighting topics. These presentations, plus other materials, are now available for free download here.

There are many LED solutions available to upgrade from fluorescent T8 or T12, from new luminaires to retrofit kits and replacement lamps. Utility rebates for these LED solutions are growing but still not widespread. Here’s a BriteSwitch graphic showing what’s available now, based on their database. Learn more here.