This Auto Flash icon is a responsive icon. This means that it's optimized for four resolutions, from tiny 16x16 until highly detailed 80x80. The style comes from the latest Microsoft Office, which makes it perfect for any Windows applications, in particular, those with ribbon toolbar control. Unlike other icon packs that have merely hundreds of icons, this monster icon pack contains 15,000 icons, all in the same style and quality.
It's a black outline of a lightning bolt positioned straight up and down, with one jag in the lightning bolt. A black capital letter A in a sans-serif font is in the top right corner, with the top of the letter A level with the top point of the lightning bolt.