English: This photo shows a 30 joule flash discharged in 3.5 microseconds, using external triggering. The system is at 1/3 power, (maximum safe operating energy is 90 joules), and the camera is behind a shade 10 welding filter. With such a short duration, electrical wattage is 8.5 million. With external triggering at such high speeds, the arc does not have time to move away from the glass before the full amp load passes through. The arc does not have time to fully heat the xenon and fill the entire tube, and maintains following the trigger wire closely. This tube showed serious signs of wall ablation after just a single shot.