Flashpoint Rapid 600 Replacement Flash Tube Never be caught with a tube down. Keep one of our flashtubes handy. All you need is one unexpected fall or a clumsy assistant. While The Rapid's flashtubes are designed to deliver much greater than 100,000 pops, conditions of use, power cycling and exposure to vibration contribute to the real lifespan of a monolight flash tube. A typical flashtube in top shape can be in service for over 250,000 flashes