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CIE S 025/E PDF
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Photometry of road illumination devices, light signalling devices and retroreflective devices for road vehicles
| Published by | Publication Date | Number of Pages |
| CIE | 2021 | 84 |
CIE S 025/E – Photometry of road illumination devices, light signalling devices and retroreflective devices for road vehicles
This standard specifies the requirements for measurement of electrical, photometric, colorimetric and retroreflective properties of road illumination devices, light-signalling devices and retroreflective devices for road vehicles including their light sources as given by various UN regulations. These properties are usually acquired with a DC supply voltage, possibly supplied by an associated light source control gear.
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