Royer, M. P. | Search NASA

DOE OSTI2013

CALiPER Exploratory Study: Recessed Troffer Lighting

This CALiPER study examines the problems and benefits likely to be encountered with LED products intended to replace linear fluorescent lamps. LED dedicated troffers, replacement tubes, and non-tube retrofit kits were evaluated against fluorescent benchmark troffers in a simulated office space for photometric distribution, uniformity of light on the task surface, suitability of light output, flicker, dimming performance, color quality, power quality, safety and certification issues, ease of installation, energy efficiency, and life-cycle cost.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗

DOE OSTI2013

Demonstration of LED Street Lighting in Kansas City, MO

This report documents a study of nine different light-emitting diode (LED) street lighting products installed in February 2011 as replacements for incumbent high-pressure sodium (HPS) luminaires in the city of Kansas City, Missouri (KCMO). The subject lighting investigation was undertaken by the city as part of a continued focus on improving street safety that had begun with an earlier extensive upgrade to the streetlighting system in the late 1990s, which substantially improved both the quantity and uniformity of its lighting. The current study was conducted in support of the U.S. Department of Energy’s Municipal Solid-State Street Lighting Consortium, via support of the GATEWAY Solid-State Lighting Technology Demonstration Program, and involved multiple staff from different organizations employing a variety of meters and procedures.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗