It's season over for the Windsor Express.
They fell 112-100 to the Lightning at the Atlas Tube Centre in Lakeshore.
With the victory, London sweeps the Central Division Finals in four games to advance to the National Basketball League of Canada Finals.
Windsor spent much of the game shorthanded. Nick Evans was suspended ahead of the game, while DeAndre Thomas was ejected early.
Royce White led the Lightning with 29 points and 12 rebounds.
The Lightning will play the winner of the Atlantic Division Final between the Island Storm and Halifax Hurricanes. Their seven-game series is tied 2-2.