%0 Conference Paper
%A Michael J Siminovitch
%A Andrew Hamilton
%A Chin Zhang
%A Rudolph R Verderber
%B Annual IEEE-IAS Conference
%C Toronto, Ontario, Canada
%D 1993
%G eng
%R 10.1109/IAS.1993.299189
%T Dirt Depreciation of Compact Fluorescent Lamp Downlights
%1 <p>Lighting Systems Group</p>
%2 LBL-35254
%8 10/1993
%X <p>An experimental protocol and apparatus was developed to assess the relative differences in dirt depreciation between vented and unvented compact fluorescent recessed downlights under simulated conditions. A simulated plenum/ceiling chamber is designed to expose both vented and unvented fixtures simultaneously to a controlled dust environment over an extended period of time. Experimental data shows that the unvented fixture depreciated faster over time due to dust exposure than the vented fixture.</p>