Guess I should have posted this picoriginally. Instead of a flash tube, I would like to ignite the charge in my black powderfiring gun. The igniter is now a separate circuit with a complicatedsystem (servos, channel mixing...) of firing the charge in co-ordination with the recoil and sound.

Not familiar with flash ciruit characteristics. Can the charger circuit cap be replaced with a smaller, lower V capacitor? The present igniter filament takes 7.2VDC nominal and peaks at about 5A.

Thanks