The 27-year-old winger has been capped 21 times by England but he has not been a regular at White Hart Lane of late.
And several Premier League clubs were linked with loan moves for Lennon as deadline day drew near but he says Everton was the move which excited him the most.
“I’m delighted,” he told the Everton website.
“It’s obviously been a tough start to the year for me, but I was over the moon when I got the call.
“It was a hectic day yesterday and it was a busy weekend, too. I was speaking to a lot of clubs, a lot of managers, but this was the one I wanted.
“Finally, when I got the call from Everton, there wasn’t really a choice, I just couldn’t wait to get up here and I’m glad it was all sorted.
“Everything about Everton made me excited to join.
“I’ve always liked the club, the way the manager (Roberto Martinez) has got the team playing, and the squad that they have. It was the most attractive to me and it was an easy decision.”
Everton will entertain local rivals Liverpool on Saturday night and Martinez says Lennon is likely to be thrown straight into the action.
???We need to see where he is physically and his match fitness, but he has been involved in 17 games in half of a season which is a good return,” said Martinez.
“He is a player that will look forward to these games and, from our point of view, it’s the perfect baptism at our club.
???To go into a Merseyside derby is a really interesting start. It’s not going to faze him.”