This is the Żarówka reflektora 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.
This is a lightbulb icon. It is shaped like a funnel, with a very wide end at the top then it tapers off towards the bottom. At the bottom, there's a very small black part which is the part that attaches into the fixture.