Specification Sheet

P87-AT WITH P8068-21A
Report No. 98085
No. Lamps: 1 Type Lamp: 150PAR38 - SYLVANIA Total Lumens: 2200
Fixture Efficiency: 98.3%
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 2.8 13 27.6 13.8 7
14 3.8 11 38.0 19.0 6
12 5.6 9 55.7 27.9 5
10 8.9 7 89.4 44.7 4
8 16.6 5 166.2 83.1 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
5028
5016
4357
2852
1398
763
518
397
323
257
186
99
36
13
7
3
1
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
117 117 117 117 114 114 114 114 109 109 109 105 105 105 100 100 100 98
112 109 107 105 110 107 105 103 103 102 100 100 98 97 96 95 94 93
107 102 98 95 105 101 97 94 97 95 92 94 92 90 92 90 88 87
102 96 91 88 100 95 90 87 92 88 86 90 87 84 87 85 83 81
97 90 85 81 95 89 84 81 87 83 80 85 82 79 83 80 78 77
93 85 80 76 91 84 79 76 83 78 75 81 77 74 80 76 74 72
89 81 75 72 88 80 75 71 79 74 71 77 73 70 76 73 70 69
85 77 71 68 84 76 71 67 75 70 67 74 70 67 73 69 66 65
82 73 68 64 81 73 68 64 72 67 64 71 67 64 70 66 63 62
79 70 65 61 78 70 65 61 69 64 61 68 64 61 67 63 61 59
76 67 62 59 75 67 62 59 66 62 58 65 61 58 65 61 58 57