The present design includes a gas discharge lamp having a base, a closed top cylindrical envelope fixedly mounted to the base, the closed top cylindrical envelope comprising an integrally formed partition defining a pair of openings on opposite sides of the partition, and two electrodes positioned proximate the base, each electrode on an opposite side of the partition. Sides of the partition contact the closed top cylindrical envelope and the partition includes a notch formed proximate an upper edge of the partition thereby establishing an exclusive gas passageway between the pair of openings.