There is an image of a light bulb. it is the incandescent, screw-in, filament type bulb. To the right and slightly below is an image of a gear. They are close enough together to be seen as a single icon.
Related to Light Automation Icon
Related icons are the icons with matching tags, as well as all household icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors