Specification Sheet

P87-AT WITH P8068-21A
Report No. 98086
No. Lamps: 1 Type Lamp: 150BR40 FL Total Lumens: 1545
Fixture Efficiency: 98.4%
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 28 6.2 3.1 11
14 0.9 24 8.6 4.3 10
12 1.3 20 12.5 6.3 8
10 2.0 16 20.1 10.1 6
8 3.7 12 37.4 18.7 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
1131
1099
1021
907
781
664
566
489
427
365
289
202
119
60
30
17
11
7
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 82 85 82 80 78
95 87 80 75 93 85 79 75 83 77 73 80 76 72 78 74 71 69
88 79 72 66 86 78 71 66 75 70 65 73 68 64 71 67 63 62
82 72 64 59 81 71 64 59 69 63 58 67 62 58 65 61 57 55
77 66 58 53 75 65 58 53 63 57 52 62 56 52 60 55 52 50
72 61 53 48 71 60 53 48 58 52 48 57 52 47 56 51 47 45
68 56 49 44 66 55 48 44 54 48 43 53 47 43 52 47 43 41
64 52 45 40 62 52 45 40 50 44 40 50 44 40 49 43 40 38
60 49 42 37 59 48 41 37 47 41 37 46 41 37 46 40 37 35