Specification Sheet

2GR8
ADF012707
Customer First Center 1121 Highway 74 South Peachtree City, GA 30269 770.486.4800 FAX [phone]
Visit our web site at www.cooperlighting.com
PHOTOMETRICS
Coefficients of Utilization
Effective floor cavity reflectance 20%
rc 80% 70% 50% 30% 10% 0%
rw 70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
RCR
0
1
2
3
4
5
6
7
8
9
10
Zonal Lumen Summary
Zone Lumens %Lamp %Fixture
0-30
0-40
0-60
0-90
0-180
Candela
Angle Along II 45° Across ⊥
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
2GR8-232A
Electronic Ballast
(2) F32T8 lamps
3100 lumens
Spacing criterion:
(II) 1.2 x mounting
height, (⊥) 1.4 x
mounting height
Efficiency 79.4%
Test Report:
2GR8-232A.IES
LER = FL-82
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH = $2.93
1851 1851 1851
1855 1846 1851
1830 1830 1845
1790 1806 1834
1731 1768 1813
1653 1714 1776
1554 1643 1720
1434 1551 1650
1297 1424 1551
1127 1251 1400
922 1060 1182
731 851 924
570 619 675
430 413 476
316 261 343
224 179 262
162 142 198
87 89 114
0 0 0
95 95 95 95 92 92 92 92 88 88 88 84 84 84 81 81 81 79
87 83 80 77 85 82 79 76 78 76 74 75 73 71 72 71 69 68
80 73 68 64 77 72 67 63 69 65 62 66 63 60 64 61 59 57
73 65 59 54 71 64 58 53 61 56 52 59 55 52 57 54 51 49
67 58 51 46 65 57 51 46 55 49 45 53 48 45 51 47 44 42
62 52 45 40 60 51 45 40 49 44 39 48 43 39 46 42 38 37
57 47 40 35 56 46 40 35 45 39 35 43 38 34 42 38 34 32
53 43 36 31 52 42 36 31 41 35 31 40 34 31 39 34 30 29
49 39 32 28 48 38 32 28 37 32 28 36 31 27 35 31 27 26
46 36 29 25 45 35 29 25 34 29 25 33 28 25 33 28 25 23
43 33 27 23 42 33 27 23 32 26 23 31 26 22 30 26 22 21
1476 23.8 30.0
2440 39.4 49.6
4149 66.9 84.3
4924 79.4 100.0
4924 79.4 100.0
Luminance Data
Average Average Average
Angle 0-Deg 45-Deg 90-Deg
in Deg cd/sm cd/sm cd/sm
45 2556 2838 3176
55 2044 2380 2594
65 1632 1567 1807
75 1388 1109 1624
85 1601 1638 2098
Coefficients of Utilization
Effective floor cavity reflectance 20%
rc 80% 70% 50% 30% 10% 0%
rw 70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
RCR
0
1
2
3
4
5
6
7
8
9
10
Zonal Lumen Summary
Zone Lumens %Lamp %Fixture
0-30
0-40
0-60
0-90
0-180
Candela
Angle Along II 45° Across ⊥
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
2GR8-432A
Electronic Ballast
(4) F32T8 lamps
3100 lumens
Spacing criterion:
(II) 1.2 x mounting
height, (⊥) 1.3 x
mounting height
Efficiency 77.1%
Test Report:
2GR8-432A.IES
LER = FL-76
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH = $3.16
3662 3662 3662
3664 3647 3657
3613 3614 3640
3531 3560 3610
3413 3480 3555
3260 3365 3461
3067 3206 3327
2829 2998 3155
2538 2723 2918
2188 2383 2591
1816 2023 2176
1457 1630 1729
1138 1212 1304
859 827 950
626 530 687
447 359 517
314 272 380
172 167 214
14 33 47
92 92 92 92 90 90 90 90 86 86 86 82 82 82 79 79 79 77
84 81 78 75 82 79 76 74 76 74 71 73 71 69 70 69 67 66
77 71 66 62 75 70 65 61 67 63 60 65 61 59 62 60 57 56
71 63 57 52 69 62 56 52 60 55 51 57 53 50 56 52 49 48
65 56 50 45 63 55 49 44 53 48 44 52 47 43 50 46 43 41
60 50 44 39 58 50 43 39 48 42 38 46 42 38 45 41 37 36
56 46 39 34 54 45 39 34 43 38 34 42 37 33 41 37 33 32
52 41 35 30 50 41 35 30 40 34 30 39 33 30 37 33 30 28
48 38 31 27 47 37 31 27 36 31 27 35 30 27 34 30 27 25
45 35 29 24 44 34 28 24 33 28 24 33 28 24 32 27 24 23
42 32 26 22 41 32 26 22 31 26 22 30 25 22 30 25 22 21
2902 23.4 30.3
4769 38.5 49.9
8035 64.8 84.0
9566 77.1 100.0
9566 77.1 100.0
Luminance Data
Average Average Average
Angle 0-Deg 45-Deg 90-Deg
in Deg cd/sm cd/sm cd/sm
45 4963 5406 5877
55 4074 4558 4835
65 3260 3139 3606
75 2770 2225 3204
85 3165 3073 3938