The lightbulb graphic has been broken up into individual components. The Bulb, socket/base, filament leads and filament. The middle of the filament is removed so you can add your own text or graphic. Although the lightbulb has been broken in to individual parts, you might need to use the 'ungroup' function of your SVG editor after loading.
This clipart is a remix from:
Advise Lightbulb
by @liftarn