Operators to pick up the torch, you can automatically, connected, gas (acetylene), oxygen generated 5 seconds DC pulse synchronization, ignition, ignition can be used at the alignment of the ignition. In order to avoid the gas gun in the production line in the work of the normally open state, or frequent guns, to save energy and improve production and work environment, improve product quality and achieve scientific and detailed management. The overall operation of the device is convenient, smaller, stable and reliable control circuit. The gas torch intermittent opening and closing controller power consumption less than 8 watts.