Specification Sheet

P87-AT WITH P8068-22A
Report No. 98080
No. Lamps: 1 Type Lamp: 150PAR38 - SYLVANIA Total Lumens: 2200
Fixture Efficiency: 96.8%
S/MH Ratio: 0.5
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 2.7 13 27.1 13.6 7
14 3.7 11 37.4 18.7 6
12 5.5 9 54.8 27.4 5
10 8.8 7 87.9 43.9 4
8 16.3 5 163.4 81.7 3
Beam Angle - 52 Beam Angle - 30
Quick Calculator Charts
0 100 200 300 400 500
0
16
32
48
64
80
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
20
40
60
80
100
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
4942
4957
4282
2807
1347
750
514
390
319
254
186
101
39
14
7
4
2
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
115 115 115 115 113 113 113 113 108 108 108 103 103 103 99 99 99 97
110 108 105 103 108 106 103 102 102 100 99 98 97 96 95 94 93 91
105 101 97 94 103 99 96 93 96 93 91 93 91 89 90 89 87 85
100 94 90 86 98 93 89 86 91 87 84 88 85 83 86 84 82 80
96 89 84 80 94 88 83 80 86 82 79 84 80 78 82 79 77 75
91 84 79 75 90 83 78 74 81 77 74 80 76 73 78 75 73 71
87 80 74 70 86 79 74 70 77 73 70 76 72 69 75 71 69 67
84 76 70 67 83 75 70 66 74 69 66 73 69 66 72 68 65 64
81 72 67 63 79 72 67 63 71 66 63 70 66 63 69 65 62 61
77 69 64 60 76 68 64 60 68 63 60 67 63 60 66 62 60 58
75 66 61 58 74 66 61 58 65 60 57 64 60 57 64 60 57 56