Sadly, the survey doesn't distinguish between urban, suburban and rural residents, as those results might have provided extra illumination.

He used the extra illumination to examine the area he was in.

On some models, white "cornering lamps" provide extra lateral illumination in the direction of an intended turn or lane change.

I glanced up, and saw that the extra illumination came from a fierce point of light a few degrees of arc from the static sun.

The extra illumination they had brought in and tacked up so carelessly had only made the shadows at the far corners that much darker.

The streetlights were on now, but this square needed no extra illumination.

Pots of burning fish-oil provided extra illumination- and smoke.

For extra illumination in these dark crevices, tape a small flashlight to the shaft of the stick.

The LX added features such as extra interior illumination and a leather-wrapped steering wheel.

Owl holes also assisted ventilation within barns and provided for some extra illumination.