Specifications

P87-AT WITH P8060-28
Report No. 98199
No. Lamps: 1 Type Lamp: 40A19-GE Total Lumens: 495
Fixture Efficiency: 12.0%
S/MH Ratio: 1.3
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 0.0 39 0.1 0.1 17
14 0.0 33 0.2 0.1 15
12 0.0 27 0.2 0.1 12
10 0.0 22 0.4 0.2 10
8 0.1 16 0.7 0.3 7
Beam Angle - 110 Beam Angle - 65
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
20
20
20
19
19
18
17
16
15
14
12
11
9
8
6
4
3
1
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
14 14 14 14 14 14 14 14 13 13 13 12 12 12 12 12 12 12
13 12 12 11 12 12 11 11 11 11 11 11 11 10 11 10 10 10
12 11 10 9 11 10 10 9 10 9 9 10 9 9 9 9 8 8
11 9 8 8 10 9 8 7 9 8 7 8 8 7 8 8 7 7
10 8 7 6 9 8 7 6 8 7 6 7 7 6 7 7 6 6
9 7 6 5 9 7 6 5 7 6 5 7 6 5 6 6 5 5
8 7 6 5 8 6 5 5 6 5 5 6 5 5 6 5 5 4
8 6 5 4 7 6 5 4 6 5 4 5 5 4 5 5 4 4
7 5 4 4 7 5 4 4 5 4 4 5 4 4 5 4 4 3
7 5 4 3 6 5 4 3 5 4 3 5 4 3 5 4 3 3
6 5 4 3 6 5 4 3 4 4 3 4 4 3 4 3 3 3