4073u, Specification decorative pendalyte, Page 4 of 4 16" pendant – Lightolier 4073U User Manual
Page 4: Application data, Coefficients of utilization 32w triple tube cfl, Spacing ratio = 3.2 32w triple tube cfl
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Type:
631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710
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Specification Decorative Pendalyte
™
4073U
Page 4 of 4
16" Pendant
Application Data
Multiple Units (32W Triple Tube, CFL)
Spacing
Height
Initial
Watts
on
to Lighted
Foot-
Per
Center
Plane
candles
Sq. Ft.
6'
6'
59
1.00
12'
53
8'
6'
33
0.56
12'
30
10'
6'
21
0.36
12'
19
Coefficients Of Utilization
32W Triple Tube CFL
% EFFECTIVE CEILING CAVITY REFLECTANCE
80
70
50
30
10
0
50 30 10
50 30 10
50 30 10
50 30 10
50 30 10
0
20% FLOOR CAVITY REFLECTANCE
ROOM
CA
VITY
RA
TIO
% WALL REFLECTION
Illuminance (FC) Multipliers
For Compact
For Metal
For Incandescent:
Fluorescent:
Halide:
100 Watt = 0.7
26 Watt = 0.7
100 Watt = 3.5
150 Watt = 1.2
42 Watt = 1.3
150 Watt = 5.2
175 Watt = 6.5
Based on 60" x 60" room with 80% ceiling cavity, 50% wall and 20% floor reflec-
tances. Height is from bottom of fixture to lighted plane.
% EFFECTIVE CEILING CAVITY REFLECTANCE
80
70
50
30
10
0
50 30 10
50 30 10
50 30 10
50 30 10
50 30 10
0
20% FLOOR CAVITY REFLECTANCE
Coefficients Of Utilization
175W ED17 MH
% WALL REFLECTION
ROOM
CA
VITY
RA
TIO
Spacing Ratio = 3.2
32W Triple Tube CFL