Specification Sheet

P87-AT WITH P8068-21A
Report No. 98082
No. Lamps: 1 Type Lamp: 75PAR30 FL Total Lumens: 985
Fixture Efficiency: 97.7%
S/MH Ratio: 1.0
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 0.4 26 4.1 2.0 14
14 0.6 22 5.6 2.8 12
12 0.8 19 8.2 4.1 10
10 1.3 15 13.2 6.6 8
8 2.5 11 24.6 12.3 6
Beam Angle - 89 Beam Angle - 54
Quick Calculator Charts
0 100 200 300 400 500
0
6
12
18
24
30
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
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.= 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
743
713
710
686
634
555
460
361
270
192
125
66
28
10
4
1
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
116 116 116 116 114 114 114 114 109 109 109 104 104 104 100 100 100 98
110 107 104 102 108 105 102 100 101 99 97 97 96 94 94 93 91 90
103 98 93 90 101 96 92 89 93 90 87 90 87 85 87 85 83 81
97 90 84 80 95 88 83 79 86 81 78 83 80 77 81 78 75 74
91 83 76 72 89 81 76 71 79 74 70 77 73 69 75 72 69 67
86 76 69 65 84 75 69 64 73 68 64 72 67 63 70 66 63 61
80 70 64 59 79 70 63 59 68 62 58 66 61 58 65 61 57 56
76 65 58 54 74 64 58 54 63 57 53 62 57 53 61 56 53 51
71 61 54 49 70 60 54 49 59 53 49 58 53 49 57 52 49 47
67 57 50 46 66 56 50 45 55 49 45 54 49 45 53 48 45 43
64 53 47 42 63 52 46 42 52 46 42 51 46 42 50 45 42 40