(P8066-09) Specification Sheet
P83 WITH P8066-31
Report No. 98060
No. Lamps: 1 Type Lamp: 13W QUAD CF - GE Total Lumens: 860
Fixture Efficiency: 20.0%
S/MH Ratio: 1.5
Single Fixture Data
Ceiling
Ht.(Ft.)
10% Values
Ft.-C Beam Dia.
Zero
Degrees
Ft.-C
50% Values
Ft.-C Beam Dia.
Ft.-C (Footcandles) are initial and measured 2'-6" from floor
16 0.0 39 0.3 0.2 21
14 0.0 33 0.5 0.2 18
12 0.1 27 0.7 0.3 15
10 0.1 22 1.1 0.5 12
8 0.2 16 2.0 1.0 9
Beam Angle - 110 Beam Angle - 77
Quick Calculator Charts
0 100 200 300 400 500
0
4
8
12
16
20
Initial Footcandles
2'6" from floor
Area per Fixture (sq. ft.)
Room Reflectances: 80% Ceiling, 50% Wall, 20% Floor
Ceiling Ht.= 9 ft.
Medium Room - RCR=5.0
120 to 200 square foot area
0 100 200 300 400 500
0
4
8
12
16
20
Initial Footcandles
2'6" from floor
Area per Fixture (sq. ft.)
Room Reflectances: 80% Ceiling, 50% Wall, 20% Floor
Ceiling Ht.= 10 ft.
Large Room - RCR=2.0
1500 to 2500 square foot area
5
15
25
35
45
55
65
75
85
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
DISTRIBUTION CURVE INTENSITY DATA
61
60
58
56
55
57
61
64
62
54
44
33
22
12
4
0
0
0
0
70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
80 70 50 30 10 0
RW
RC
10
9
8
7
6
5
4
3
2
1
0
Effective Floor Cavity Reflectance 0.20
ZONAL CAVITY COEFFICIENTS OF UTILIZATION
24 24 24 24 23 23 23 23 22 22 22 21 21 21 20 20 20 20
22 21 21 20 22 21 20 20 20 20 19 19 19 19 19 18 18 18
20 19 18 17 20 19 18 17 18 17 16 17 17 16 17 16 16 15
19 17 15 14 18 17 15 14 16 15 14 15 15 14 15 14 13 13
17 15 13 12 17 15 13 12 14 13 12 14 13 12 13 12 12 11
16 13 12 11 15 13 12 11 13 11 10 12 11 10 12 11 10 10
15 12 10 9 14 12 10 9 12 10 9 11 10 9 11 10 9 9
14 11 9 8 13 11 9 8 11 9 8 10 9 8 10 9 8 8
13 10 8 7 12 10 8 7 10 8 7 9 8 7 9 8 7 7
12 9 8 6 11 9 7 6 9 7 6 9 7 6 8 7 6 6
11 8 7 6 11 8 7 6 8 7 6 8 7 6 8 7 6 5