Specification Sheet

SOFT CLOUD
P7280-60ES
Report No. 2000043
No. Lamps: 4 Type Lamp: F34T12 GE Total Lumens: 11400
Fixture Efficiency: 53.1%
S/MH Ratio: 1.4 (0) 1.4 (90)
Quick Calculator Charts
0 100 200 300 400 500
0
30
60
90
120
150
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 400500
0
40
80
120
160
200
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
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 0.8 43 8.2 4.1 19
14 1.1 36 11.3 5.7 16
12 1.7 30 16.6 8.3 14
10 2.7 24 26.6 13.3 11
8 5.0 17 49.6 24.8 8
Beam Angle - 115Beam Angle - 71
5
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
165
170
175
180
DISTRIBUTION CURVE INTENSITY DATA
14991499
1500 1493
1495 1488
1491 1483
1475 1472
14581458
1432 1435
1395 1401
1340 1350
12541271
1161 1182
1033 1065
892 930
743 788
587 638
427 489
274 345
141 226
61 169
56 165
56 163
58 160
58157
57152
56 146
54 139
50 131
43 119
15 84
670
5 61
555
446
00
00
00
00
70 503010705030105030105030105030100
80 70 5030100
RW
RC
10
9
8
7
6
5
4
3
2
1
0
Effective Floor Cavity Reflectance 0.20
ZONAL CAVITY COEFFICIENTS OF UTILIZATION
62 62 62 62 60 60 60 60 56 56 56 53 53 53 49 49 49 48
56 53 51 48 54 51 49 47 48 46 45 45 44 42 42 41 40 39
50 46 42 39 49 44 41 38 42 39 36 39 37 34 37 35 33 31
46 40 35 32 44 39 34 31 36 33 30 34 31 29 32 30 27 26
42 35 30 26 40 34 29 26 32 28 25 30 27 24 28 26 23 22
38 31 26 22 37 30 26 22 28 24 21 27 23 21 25 22 20 19
35 28 23 19 34 27 22 19 25 21 18 24 21 18 23 20 17 16
32 25 20 17 31 24 20 17 23 19 16 22 18 16 21 18 15 14
30 23 18 15 29 22 18 15 21 17 14 20 16 14 19 16 14 12
28 21 16 13 27 20 16 13 19 15 13 18 15 12 17 14 12 11
26 19 15 12 25 19 15 12 18 14 12 17 14 11 16 13 11 10