Specification Sheet

P68 WITH P8033-28
Report No. 99051
No. Lamps: 2 Type Lamp: 18W CF QUAD - GE Total Lumens: 2500
Fixture Efficiency: 10.0%
S/MH Ratio: 1.2 (0) 1.3 (90)
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 0.5 0.2 17
14 0.1 33 0.6 0.3 15
12 0.1 27 0.9 0.5 12
10 0.2 22 1.5 0.8 9
8 0.3 16 2.8 1.4 7
Beam Angle - 110 Beam Angle - 65
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
86 86
85 85
84 84
82 83
80 80
76 77
72 74
68 70
62 65
57 60
51 54
44 48
37 41
30 34
23 27
15 19
812
36
00
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
12 12 12 12 12 12 12 12 11 11 11 11 11 11 10 10 10 10
11 10 10 10 11 10 10 9 10 9 9 9 9 9 9 9 9 8
10 9 8 8 10 9 8 8 8 8 7 8 8 7 8 7 7 7
9 8 7 6 9 8 7 6 7 7 6 7 7 6 7 6 6 6
8 7 6 5 8 7 6 5 7 6 5 6 6 5 6 6 5 5
8 6 5 5 7 6 5 5 6 5 5 6 5 5 6 5 4 4
7 6 5 4 7 5 5 4 5 5 4 5 4 4 5 4 4 4
6 5 4 4 6 5 4 4 5 4 4 5 4 3 5 4 3 3
6 5 4 3 6 5 4 3 4 4 3 4 4 3 4 4 3 3
6 4 3 3 5 4 3 3 4 3 3 4 3 3 4 3 3 3
5 4 3 3 5 4 3 3 4 3 3 4 3 3 4 3 3 2
P68-EBFB
P68-EBFB WITH P8033-28