Norway has installed auto-dimming street lights in parts of the country in hopes of decreasing its carbon footprint.
Along a five-mile stretch of a highway near Hole, Norway, outside of Oslo, LED lights dim to 20 percent when no cars, bikes or pedestrians are in the area.
When a car – or a cyclist or pedestrian for that matter – passes a radar sensor attached to the street lights, the lights turn to a full 100 per cent, allowing people to have full sight of what’s ahead of them.
After the car passes, the lights return to 20 per cent to save energy when they’re not needed.
