Specification Sheet

P87-AT WITH P8068-28
Report No. 98104
No. Lamps: 1 Type Lamp: 150BR40 FL Total Lumens: 1545
Fixture Efficiency: 98.5%
S/MH Ratio: 0.8
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 0.6 29 6.1 3.1 11
14 0.8 24 8.4 4.2 10
12 1.2 20 12.4 6.2 8
10 2.0 16 19.9 9.9 6
8 3.7 12 36.9 18.5 5
Beam Angle - 93 Beam Angle - 45
Quick Calculator Charts
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.= 9 ft.
Medium Room - RCR=5.0
120 to 200 square foot area
0 100 200 300 400 500
0
12
24
36
48
60
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
1117
1089
1013
897
771
658
564
488
428
368
292
204
122
65
33
18
11
8
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
110 106 103 100 107 104 101 99 100 98 95 96 94 93 93 91 90 88
102 96 91 86 100 94 89 85 91 87 83 88 84 81 85 82 80 78
95 87 80 75 93 85 79 74 82 77 73 80 76 72 77 74 71 69
88 79 71 66 86 77 71 66 75 69 65 73 68 64 71 67 63 61
82 72 64 59 80 71 64 58 69 63 58 67 62 57 65 61 57 55
77 66 58 53 75 65 58 53 63 57 52 62 56 52 60 55 51 50
72 60 53 48 70 60 53 48 58 52 47 57 51 47 56 51 47 45
67 56 49 44 66 55 48 43 54 48 43 53 47 43 52 47 43 41
64 52 45 40 62 51 44 40 50 44 40 49 44 39 48 43 39 38
60 48 41 37 59 48 41 37 47 41 37 46 40 36 45 40 36 35