(P8066-09) Specification Sheet

P87-AT WITH P8066-31
Report No. 98099
No. Lamps: 1 Type Lamp: 40A19 Total Lumens: 495
Fixture Efficiency: 23.0%
S/MH Ratio: 1.3
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 36 0.3 0.1 17
14 0.0 31 0.4 0.2 14
12 0.1 26 0.6 0.3 12
10 0.1 20 0.9 0.5 9
8 0.2 15 1.7 0.9 7
Beam Angle - 107 Beam Angle - 64
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
52
51
48
46
44
43
43
43
41
38
33
19
7
2
0
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
28 28 28 28 27 27 27 27 26 26 26 25 25 25 24 24 24 23
26 25 24 24 25 25 24 23 24 23 23 23 22 22 22 22 21 21
24 23 21 20 23 22 21 20 21 20 20 21 20 19 20 19 19 18
22 20 19 17 22 20 18 17 19 18 17 19 18 17 18 17 16 16
21 18 16 15 20 18 16 15 17 16 15 17 16 15 16 15 14 14
19 16 15 13 19 16 14 13 16 14 13 15 14 13 15 14 13 12
18 15 13 12 17 15 13 12 14 13 11 14 12 11 14 12 11 11
16 13 12 10 16 13 12 10 13 11 10 13 11 10 12 11 10 10
15 12 10 9 15 12 10 9 12 10 9 12 10 9 11 10 9 9
14 11 10 8 14 11 9 8 11 9 8 11 9 8 10 9 8 8
13 10 9 8 13 10 9 8 10 9 7 10 8 7 10 8 7 7