An improved efficiency fluorescent lighting system is described. The
system utilizes reduced rows of fluorescent luminaires which are spaced
much further apart than traditional spacing. The luminaires used in the
system of the present invention have increased light output of each
luminaire by up to fifty percent through a combination of use of a high
efficiency lamp producing about 3250 lumens, an electronic dimming
ballast having a ballast factor of about 1.2 and a luminaire having a
spacing to mounting height ratio of at least 1.5.