Specification Sheet

P87AT WITH P8068-22A
Report No. 98128
No. Lamps: 1 Type Lamp: 40A19 - GE Total Lumens: 505
Fixture Efficiency: 57.7%
S/MH Ratio: 1.4
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 37 0.6 0.3 20
14 0.1 31 0.9 0.4 17
12 0.1 26 1.3 0.6 14
10 0.2 20 2.1 1.0 11
8 0.4 15 3.9 1.9 8
Beam Angle - 108 Beam Angle - 72
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
117
115
115
122
130
126
120
112
102
90
76
47
18
6
1
1
0
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
69 69 69 69 67 67 67 67 64 64 64 62 62 62 59 59 59 58
65 62 61 59 63 61 60 58 59 57 56 57 56 55 55 54 53 52
60 56 53 51 59 55 52 50 53 51 49 51 49 48 50 48 47 46
55 51 47 44 54 50 46 43 48 45 42 47 44 42 45 43 41 40
51 45 41 38 50 45 41 38 43 40 37 42 39 37 41 38 36 35
48 41 37 33 46 40 36 33 39 36 33 38 35 32 37 34 32 31
44 37 33 29 43 37 32 29 36 32 29 35 31 29 34 31 29 28
41 34 29 26 40 34 29 26 33 29 26 32 28 26 31 28 26 25
38 31 27 23 37 31 26 23 30 26 23 29 26 23 29 25 23 22
36 29 24 21 35 28 24 21 28 24 21 27 23 21 26 23 21 20
33 26 22 19 33 26 22 19 25 22 19 25 21 19 24 21 19 18