Specification Sheet

P87-AT WITH P8068-28
Report No. 98100
No. Lamps: 1 Type Lamp: 75PAR30 LN/FL Total Lumens: 985
Fixture Efficiency: 97.9%
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 27 3.8 1.9 14
14 0.5 23 5.2 2.6 12
12 0.8 19 7.7 3.8 10
10 1.2 15 12.3 6.2 8
8 2.3 11 22.9 11.4 6
Beam Angle - 90 Beam Angle - 55
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
692
683
676
654
615
544
455
357
268
192
131
75
34
16
9
6
4
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
116 116 116 116 114 114 114 114 109 109 109 104 104 104 100 100 100 98
110 107 104 101 107 105 102 100 101 98 97 97 95 94 93 92 91 89
103 97 93 89 101 96 91 88 92 89 86 89 87 84 87 84 82 80
97 89 83 79 94 88 82 78 85 80 77 83 79 76 80 77 74 73
90 82 75 70 89 81 75 70 78 73 69 76 72 68 74 71 67 66
85 75 68 63 83 74 68 63 72 67 62 71 66 62 69 65 61 60
80 69 62 58 78 69 62 57 67 61 57 65 60 56 64 60 56 54
75 64 57 52 73 63 57 52 62 56 52 61 56 52 60 55 51 50
70 60 53 48 69 59 53 48 58 52 48 57 51 48 56 51 47 46
66 56 49 44 65 55 49 44 54 48 44 53 48 44 52 47 44 42
63 52 45 41 62 51 45 41 51 45 41 50 44 41 49 44 41 39