Simple cartoon-like light bulbs, one with lights switched on and one off. Good for use in websites as favicons or for accompanying links (e.g. gray light for a:link, yellow when hovering), still recognizable even when very small.
This is a completely free image Simple Light Bulb on/off that you can download, post, and use for any purpose.
Image License: CC0 No Rights Reserved
You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission, and at no cost. This image is completely free.