Table 2 Performance parameters required for ME2 class road lighting [16, 17] (Table 1a BS EN 13201-2:2003 [16, 17])
From: Investigation of photometric distribution of LED and HSPV for road lighting
Performance parameter | Target value |
|---|---|
Average luminance | ≥ 1.5 cd/m2 |
Overall uniformity | ≥ 0.4 |
Longitudinal uniformity | ≥ 0.7 |
Threshold increment | ≤ 10% |