(P8066-09) Specification Sheet

P87AT WITH P8066-28
Report No. 98123
No. Lamps: 1 Type Lamp: 40A19 GE Total Lumens: 505
Fixture Efficiency: 58.1%
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 0.1 38 0.6 0.3 18
14 0.1 33 0.8 0.4 15
12 0.1 27 1.2 0.6 13
10 0.2 21 2.0 1.0 10
8 0.4 16 3.7 1.8 7
Beam Angle - 110 Beam Angle - 68
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
112
110
108
108
105
103
100
96
91
84
75
57
31
21
14
9
5
2
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
69 69 69 69 68 68 68 68 65 65 65 62 62 62 59 59 59 58
64 62 60 58 63 60 58 57 58 56 55 56 54 53 54 53 52 51
59 55 51 48 57 54 50 48 52 49 46 50 47 45 48 46 44 43
54 48 44 41 53 48 44 40 46 42 40 44 41 39 43 40 38 37
50 43 38 35 48 42 38 35 41 37 34 40 36 34 38 36 33 32
46 39 34 30 45 38 33 30 37 33 30 36 32 29 35 32 29 28
42 35 30 26 41 34 30 26 33 29 26 32 29 26 32 28 26 24
39 32 27 23 38 31 27 23 30 26 23 30 26 23 29 25 23 22
37 29 24 21 36 28 24 21 28 24 21 27 23 20 26 23 20 19
34 26 22 19 33 26 22 19 25 21 19 25 21 18 24 21 18 17
32 24 20 17 31 24 20 17 24 20 17 23 19 17 22 19 17 16