GE LED Roadway Scalable Specification Grade Cobrahead Fiche technique Page 12

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Photometrics
Scalable Specification Grade Cobrahead (ERS3)
ERS3
Extra Narrow Asymmetric
(N3A1)
20000 Lumens
5000K
GE456483
ERS3
Narrow Asymmetric
Medium
(N3B1)
20500 Lumens
5000K
GE456488
ERS3
Asymmetric Short
(N3C1)
20500 Lumens
5000K
GE456493
ERS3
Asymmetric Forward
(N3D1)
20000 Lumens
5000K
GE456498
ERS3
Asymmetric Medium
(N3E1)
20500 Lumens
5000K
GE456503
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
11115
8337
5558
2779
12431
9328
6215
3108
15481
11615
7743
3873
18099
11005
13574
8254
9043
5503
4525
2751
2
2
2
2
2
1
1
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1
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.2
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.5
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.1
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