The U.S. Department of Energy's GATEWAY program has released a new report on a pilot installation of tunable-white LED systems at a senior-care facility in Sacramento, CA. The installation took place at the ACC Care Center and was conducted by the Sacramento Municipal Utility District (SMUD), which invited GATEWAY to document the performance of the new lighting systems. Two of the primary goals identified by SMUD and ACC were to learn more about how tunable-white lighting affects the sleep patterns, nighttime safety, and other behaviors of the residents; and to better equip the staff to provide excellent care by improving the quality of lighting relative to the incumbent system.

The U.S. Department of Energy's GATEWAY program has released the third report in a series documenting the performance of LED luminaires in the Yuma (Arizona) Sector Border Patrol Area, on the U.S.-Mexico border, which is a high-temperature, high-solar-radiation environment. The first report compared six LED luminaires installed in February 2014 to the incumbent high-intensity discharge (HID) lighting system, and the second discussed the performance of the LED system after 2,500 and 5,000 hours of operation, including unanticipated illuminance changes.

The U.S. Department of Energy's GATEWAY program has released a report describing four exterior SSL projects that have been completed at Princeton University, which has long recognized SSL’s potential benefits. These projects show how the school’s approach to solid-state lighting has evolved as its knowledge has broadened and as the products available have improved in performance and sophistication:

The U.S. Department of Energy has released a follow-up GATEWAY report on LED system performance at the Yuma (Arizona) Sector Border Patrol Area. Six LED luminaires – installed on three poles as part of a trial installation detailed in a prior GATEWAY report – continue to be monitored, with illuminance measurements recorded initially in February 2014 and again in September 2014 at about 2,500 hours of operation and in March 2015 at about 5,000 hours of operation.