High Quality Down Lighting Luminaire with 73% Overall System Efficiency

Harrison, Robert ; Allen, Steven C. ; Bernier, Joseph ; Harrison, Robert

Osram Sylvania, Incorporated

关键词: Efficiency;    Power Factor;    Color;    32 Energy Conservation, Consumption, And Utilization;    Targets;   

DOI  :  10.2172/1024904
RP-ID  :  FC26-08NT01582
RP-ID  :  1024904

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report summarizes work to develop a high flux, high efficiency LED-based downlight at OSRAM SYLVANIA under US Department of Energy contract DE-FC26-08NT01582. A new high power LED and electronic driver were developed for these downlights. The LED achieved 100 lumens per watt efficacy and 1700 lumen flux output at a correlated color temperature of 3500K. The driver had 90% electrical conversion efficiency while maintaining excellent power quality with power factor >0.99, and total harmonic distortion <10%. Two styles of downlights using the LED and driver were shown to exceed the project targets for steady-state luminous efficacy and flux of 70 lumens per watt and 1300 lumens, respectively. Compared to similar existing downlights using compact fluorescent or LED sources, these downlights had much higher efficacy at nearly the same luminous flux.