London Welsh scored nine tries in a comfortable win over Cavalieri Prato in the Challenge Cup.
Poor discipline cost the visitors in the first half as they saw two players sent to the sin bin, allowing the Exiles to take a 29-0 lead at the break.
The home side continued to add to their score throughout the second half, rarely allowing the Italians to find their rhythm.
Tom Arscott was the only player to break the try line twice, with eight names making the scoreboard for Welsh.
The win means London Welsh close the gap to second-placed Grenoble in their pool.