LED + SSL

The National Electrical Manufacturers Association (NEMA) has published NEMA LSD 74-2016 Considerations of Field LED Driver Replacement. This whitepaper discusses issues related to the field replacement of drivers in LED luminaires and how several aspects must be considered to ensure that the replacement driver will function the same as the original driver. Developed by the [...]

David Shiller, President of Lighting Solution Development, LLC, recently blogged his top 11 takeaways from the 2016 Strategies in Light Conference. Socket saturation, OLEVs, price erosion, mini luminaires, R9 and more interesting observations here.

Below is my lighting column published in the June issue of tED Magazine. Reprinted with permission. The large majority of commercial building luminaires feature some type of optical system that controls the light emission. The type of optics employed ultimately determines where light is directed, how much light reaches that point, and with how much [...]

At Light + Building 2016, Philips research expert Marc de Samber introduced an external expert, Robert Karlicek, who made a presentation about technology trends and their impact on LED luminaires. Interesting stuff. Check it out:

New “TEN°” binning from Osram Opto Semiconductors provides the basis for extreme color consistency for white LEDs that are used as single-LED light sources in lighting solutions such as spotlights and downlights. To achieve this, the current standard CIE 1931 2° xy color space has been supplemented with CIE 2015 10° u‘v‘, recently developed by [...]

As in previous years, the U.S. Department of Energy’s Solid-State Lighting Program offered free educational sessions at its booth at LIGHTFAIR International. These booth presentations are now posted are now posted on the DOE SSL website. Click here to download them.

In December 2015, LD+A published a column, “The LED Driver Dilemma,” by Jerry Plank. That month’s Safety Column discusses how LED driver substitution continues to be hampered by a lack of standards. Click here to read an excerpt.

I recently had the pleasure of interviewing Scott Wegner and Kevin Broughton, principal optical engineers for Eaton. The topic: LED optics. I’m happy to share their responses with you here. The interview informed an article I wrote for the June 2016 issue of tED. DiLouie: What is the purpose of an optical system, as applied [...]

Republication of Postings from the U.S. Department of Energy (DOE) Solid-State Lighting Program by Jim Brodrick, SSL Program Manager, U.S. Department of Energy The topic of droop comes up quite a bit when discussing LED lighting R&D. But exactly what is droop, and why do we care about it? Simply put, droop is a phenomenon [...]