The two sides will meet at Easter Road on Thursday night, but it is the Greek side who have the advantage when it comes to recent results in Europe.
"They have a bit of pedigree in this tournament in terms of playing in the group stages," Lennon said.
"They have done [qualified] two or three times in the last four or five years so they area good team and finished the season strongly as we did.
"They are a big squad but are tactically very well set up and are a smart team. It's a very difficult tie for us."
"I would imagine so. We have very little pedigree at this level. We had the two games against Brondby [in 2016] which were an excellent starting point from my point of view in terms of taking the job on," he added when asked if Tripolis were indeed the favourites.
"I would say they have a lot more experience than us at his level, however, it's their first competitive game and any advantage we can take, we should try and maximise."