Specification Sheet

P87AT WITH P8068-28
Report No. 98101
No. Lamps: 1 Type Lamp: 75PAR30 SN - GE Total Lumens: 1100
Fixture Efficiency: 99.3%
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 1.4 14 14.2 7.1 8
14 2.0 12 19.5 9.8 7
12 2.9 10 28.6 14.3 5
10 4.6 8 45.8 22.9 4
8 8.5 6 85.3 42.6 3
Beam Angle - 54 Beam Angle - 32
Quick Calculator Charts
0 100 200 300 400 500
0
8
16
24
32
40
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
10
20
30
40
50
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
2579
2515
2167
1580
936
453
257
167
109
59
34
26
23
18
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
118 118 118 118 115 115 115 115 110 110 110 106 106 106 101 101 101 99
113 110 108 106 111 108 106 104 104 103 101 101 99 98 97 96 95 93
108 103 100 97 106 102 98 96 99 96 93 96 93 91 93 91 90 88
103 97 93 89 101 96 92 89 94 90 87 91 88 86 89 87 85 83
99 92 87 83 97 91 86 83 89 85 82 87 84 81 85 82 80 79
95 87 82 78 93 87 82 78 85 81 77 83 80 77 82 79 76 75
91 83 78 74 90 82 78 74 81 77 73 80 76 73 78 75 73 71
88 79 74 71 86 79 74 70 78 73 70 76 73 70 75 72 69 68
84 76 71 67 83 75 71 67 74 70 67 73 69 67 73 69 66 65
81 73 68 64 80 72 68 64 72 67 64 71 67 64 70 66 64 62
78 70 65 62 77 70 65 62 69 64 61 68 64 61 67 64 61 60