%0 Conference Paper %A Rudolph R Verderber %A Oliver C Morse %A Francis M Rubinstein %A Michael J Siminovitch %B 1987 IES National Conference %C Scottsdale, AZ %D 1987 %G eng %L LBL-23169 %T Measurement of Optical Efficiency of Fluorescent Luminaires %1

Lighting Systems Group

%2 LBL-23169 %8 08/1987 %X

By controlling the lamp wall temperature of fluorescent lamps with a Peltier device, the optical efficiency of luminaires can be measured directly. Measurements of the fixture efficiency for a luminaire can vary by over 8% depending upon the lamp-ballast system used in the measurement. The authors suggest that optical efficiency may besan improved metric for evaluating fixture designs.