Weapons often are calculable. This isn't one of them. You can do a little damage, or you can do a lot. Either way, it twinkles like the tear in your opponent's eye, and is pretty to look at! Each twinkle does 5 damage a piece.
A more powerful version of Twinkler, with a larger radius that can affect multiple tanks at once. Sparkling is better than twinkling, right? Each shot does 7 damage a piece, and it's enough to wipe the glimmer out of your opponent's eyes.