"trail of light" is a correct and usable phrase in written English.
It refers to a path or series of light sources, often used to create a certain effect or atmosphere. Example: The city was illuminated by a beautiful trail of light, as thousands of colorful lanterns hung from the trees and buildings.
Doubling as a key chain, the two-inch-long multicolor L.E.D. emits a tricolored trail of light.
Later, with the water utterly still, we paddled through the stars, spotting more otters, three of them, each a brief shadow then a silver trail of light cutting across the darkness.
When a neutrino smashes into another particle, the subsequent muon leaves a trail of light that mirrors the trajectory of the neutrino – allowing scientists to work out where the neutrino came from.
This is because, like ants, the robots leave a trail that the others follow; while ants leave a trail of chemicals - or pheromones - that their nest mates are able to sniff out, the robots leave a trail of light.
A projector connected to the camera then produced a spot of light at regular intervals along their route, leaving a "breadcrumb trail" of light that got brighter every time another robot tracked over the same path.
They gave the machines three rules: to walk randomly in a given direction, to turn away from obstacles they bump into, and to follow a trail of light left by other robots (as seen in the video)—similar to the way real ants use their antennae to sense chemicals left behind by other ants.
The moment has bite, and it ties in with Robert Flynt's trails-of-light photos, projected on the back wall.
As a breath of wind rolls, a trail of lights illuminate.
At night, it gives the impression of some sort of fairyland staircase that has disappeared into the sky, leaving a trail of lights behind.
In Austin, Tex., a beloved "Trail of Lights" tradition will look different — and shorter — this year, saving hundreds of thousands of dollars.
So I put my boots on and stepped into the cold night and took a deep breath and looked up at the trail of lights already going up to the Balcony (8400m), this was it!
