[lake of the nations]

Originally Posted by middeljohn

The only way LED fixtures used for roadway can illuminate the sky is by reflecting off the ground, which in the case of pavement is typically less than 1%, usually closer to 0.1%.

While this is true (or so) for fresh asphalt, the percentage of reflected light can exceed 10% as it ages. For concrete, it's more like 50% and in the wintertime, when the ground is covered in snow, it can reach as much as 90%.