This is the Żarówka żwiecowa płaska icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.
The icon is a simple egg shaped bulb, jutting from a fixture. The light bulb stands vertically tall above its fixture, which tapers down to the socket where it plugs for power. The inner workings of the bulb are not depicted, nor anything that would imply the bulb being lit.