A drain tube is connected in parallel at both ends of the main flash tube

- Mar 25, 2020-

 drain tube is connected in parallel at both ends of the main flash tube. The ignition flash circuit of the main flash tube is the same as that of the normal type. When the light output of the main flash reaches a certain reference value, it is received by the photometric element, the integrating circuit and the control circuit trigger the bleed tube to immediately release the energy that has not been released in the main control mode, and the main flash tube is extinguished.