1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0 1 2 3 4 5
SS
HS
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0 1 2 3 4 5
SS
HS
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
1
2 3 4
5
SS
HS
SSHS
SS
SS
SS
HS
HS
HS
SSHS
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0 1 2 3 4 5
SS
HS
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0 1 2 3 4 5
SS
HS
Photometrics
Scalable Specification Grade Cobrahead (ERS2)
ERS2
Extra Narrow Asymmetric
(H3A1)
21800 Lumens
5000K
GE456713
ERS2
Narrow Asymmetric Medium
(H3B1)
22400 Lumens
5000K
GE456718
ERS2
Asymmetric Short
(H3C1)
22400 Lumens
5000K
GE456723
ERS2
Asymmetric Forward
(H3D1)
21800 Lumens
5000K
GE456728
Grid Distance in Units of
Mounting Height at 30’ Initial
Footcandle Values at Grade
Polar Trace Vertical and Horizontal
Plane through Horizontal Angle of
Maximum Candlepower
Coefficients of Utilization Street
Width / Mounting Height
ISO Plot
Polar Curve
CU Graph
ERS2
Extra Narrow Asymmetric
(H3E1)
22400 Lumens
5000K
GE456733
12146
9108
6073
3030
13583
10187
6781
3396
16922
12682
8461
4237
18728
11996
14786
8997
9864
5988
4932
2999
2
2
2
2
2
1
1
1
1
1
.2
.2
.2
.2
.2
.5
.5
.5
.5
.5
.1
.1
.1
.1
.1
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