SVG version of <a href="//commons.wikimedia.org/wiki/File:Bulbgraph.png" title="File:Bulbgraph.png">Image:Bulbgraph.png</a>
<a href="//commons.wikimedia.org/wiki/User:RubySS" title="User:RubySS">RubySS</a>
2008-07-09
<span class="int-own-work" lang="en">Own work</span>