Specification Sheet

P87-AT WITH P8068-21A
Report No. 98084
No. Lamps: 1 Type Lamp: 65BR30 FL Total Lumens: 770
Fixture Efficiency: 92.1%
S/MH Ratio: 0.9
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 29 2.8 1.4 12
14 0.4 24 3.9 2.0 10
12 0.6 20 5.7 2.9 8
10 0.9 16 9.2 4.6 7
8 1.7 12 17.1 8.5 5
Beam Angle - 94 Beam Angle - 47
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
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.= 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
517
509
477
429
375
320
277
243
212
175
132
82
42
23
14
7
3
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
110 110 110 110 107 107 107 107 102 102 102 98 98 98 94 94 94 92
103 100 97 94 101 98 95 93 94 92 90 91 89 87 87 86 85 83
96 90 86 82 94 89 84 81 86 82 79 83 80 77 80 78 76 74
90 82 76 71 88 81 75 71 78 73 70 76 72 69 74 70 67 66
83 75 68 63 82 73 67 63 71 66 62 69 65 61 68 64 60 59
78 68 61 56 76 67 61 56 65 60 56 64 59 55 62 58 54 53
73 63 56 51 71 62 55 51 60 54 50 59 54 50 57 53 49 48
68 58 51 46 67 57 50 46 56 50 46 54 49 45 53 49 45 43
64 53 47 42 63 53 46 42 52 46 42 51 45 41 50 45 41 40
60 49 43 38 59 49 43 38 48 42 38 47 42 38 46 41 38 36
57 46 40 35 56 46 40 35 45 39 35 44 39 35 43 39 35 34