(P8066-09) Specification Sheet

P87-AT WITH P8066-28
Report No. 98211
No. Lamps: 1 Type Lamp: 75PAR30L/FL-GE Total Lumens: 985
Fixture Efficiency: 90.1%
S/MH Ratio: 1.1
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 0.3 27 3.3 1.7 15
14 0.5 23 4.6 2.3 12
12 0.7 19 6.8 3.4 10
10 1.1 15 10.8 5.4 8
8 2.0 11 20.2 10.1 6
Beam Angle - 91 Beam Angle - 57
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
610
598
598
588
559
503
423
333
250
179
122
73
33
14
8
5
3
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
107 107 107 107 105 105 105 105 100 100 100 96 96 96 92 92 92 90
101 98 96 93 99 96 94 92 93 91 89 89 88 86 86 85 84 82
95 90 85 82 93 88 84 81 85 82 79 82 80 77 80 78 76 74
89 82 77 72 87 81 76 72 78 74 71 76 72 69 74 71 68 67
83 75 69 65 82 74 69 64 72 67 63 70 66 63 68 65 62 60
78 69 63 58 76 68 62 58 66 61 57 65 60 57 63 59 56 55
73 64 57 53 72 63 57 52 61 56 52 60 55 52 59 55 51 50
69 59 53 48 67 58 52 48 57 52 48 56 51 47 55 50 47 46
65 55 48 44 63 54 48 44 53 48 44 52 47 43 51 47 43 42
61 51 45 41 60 50 44 40 49 44 40 49 44 40 48 43 40 39
58 48 41 37 57 47 41 37 46 41 37 46 41 37 45 40 37 36