... in at each end. Then, a means of triggering the tube . . such as a wire wrapped around the outer diameter . ... secondary of the trigger coil is attached to the flashtube trigger wire. D, When switch S is closed, ... of the electrons in the Xenon gas molecules to a higher energy state, or in many cases ... 0,7 microns, The color temperature normally corresponds to a black body at between 6000K and 7000 K, ...