Larne boss Lynch knows it will be a tough test against a Rovers side which have won four straight League of Ireland titles and boast a rich European pedigree.
The Dublin team, who started with a 1-1 draw against APOEL, qualified for the Conference League group stage two seasons ago.
"We're under no illusions of how a good a team Rovers are, how many good players that they have," said Lynch.
"But we keep saying to the players that it's not an insurmountable game, it a hugely difficult game against a top, top side but we also have to know that we're also a top side - hopefully we can go and cause an upset."
The match will be played at Windsor Park in Belfast as Larne's home stadium Inver Park does now meet Uefa requirements and Lynch believes that will take a bit of the sting out of the game.
I would have loved to have brought them home [Inver Park]. A smaller stadium, bigger crowd, ideally a bit more of an intimidating atmosphere - it would always give you that bit more of an advantage."