Specifications

P87-AT WITH 8009-60
Report No. 98185
No. Lamps: 1 Type Lamp: 50PAR30S/FL-SYLVANIA Total Lumens: 600
Fixture Efficiency: 74.3%
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 0.1 29 1.4 0.7 11
14 0.2 25 1.9 1.0 10
12 0.3 21 2.8 1.4 8
10 0.5 16 4.5 2.3 6
8 0.8 12 8.4 4.2 5
Beam Angle - 95 Beam Angle - 45
Quick Calculator Charts
0 100 200 300 400 500
0
4
8
12
16
20
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
4
8
12
16
20
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
255
249
232
206
178
151
128
111
97
86
77
68
59
50
40
31
22
15
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
88 88 88 88 86 86 86 86 83 83 83 79 79 79 76 76 76 74
81 77 74 71 79 75 72 70 72 70 67 69 67 65 66 65 63 62
74 67 62 58 72 66 61 57 63 59 56 61 58 55 59 56 54 52
67 60 54 49 66 59 53 48 56 52 48 54 50 47 52 49 46 44
62 53 47 42 60 52 46 42 51 45 41 49 44 41 47 43 40 39
57 48 42 37 56 47 41 37 46 40 36 44 40 36 43 39 35 34
53 44 37 33 52 43 37 33 42 36 32 40 36 32 39 35 32 30
50 40 34 29 48 39 33 29 38 33 29 37 32 29 36 32 29 27
47 37 31 27 45 36 31 26 35 30 26 34 30 26 34 29 26 25
44 34 28 24 43 34 28 24 33 28 24 32 27 24 31 27 24 22
41 32 26 22 40 31 26 22 31 26 22 30 25 22 29 25 22 21