2200, 2700, 3000 and 4000 K
POLAB’s LED module overview describes 2200 K as extra-warm light for coastal, urban and residential settings, for example. 2700 K is listed for residential streets, parks and squares.
3000 K is described for modern street lighting, car parks and urban areas. 4000 K is listed for busy roads, industry and high-activity parking areas. These examples guide a project; they do not guarantee suitability for a particular environment.
Amber: distinguish the LED source from the output
For VALDUR Amber, the standard reference is a 2200 K LED source producing approximately 1900 K output in LEDiL’s indicative example. The LED source temperature and the light after the lens are therefore different data points.
Other LED temperatures and SPECTRE configurations need separate confirmation from POLAB. The result depends on the LED and optic combination.
No colour temperature is best everywhere
The site’s discussion of open questions in street lighting explains that a universal optimum for road safety, ecology, health and energy has not been established. Colour temperature alone does not describe the spectrum’s significance for vision.
Assess the visual task and the sensitivity of the site. A lower or higher colour temperature does not by itself mean that all project requirements are met.
Choose it alongside the other lighting parameters
Use the application examples as a starting point and check the selected LED and lens combination. Record colour temperature, light level and operating plan alongside the other project choices. The knowledge overview retains explicit qualifications where relationships remain uncertain.