Claude Giroux scored two goals for Philadelphia (8-4-3). Carter Hart made 29 saves.
"The first two periods, 'Hartsy' really got tested and gave us a chance to stay in the game," Giroux said. "In the third, we're trying to do our best to kind of control the game. I think our third was our best period. We were on our toes and just having that one point, it's pretty big."
Stamkos put the Lightning ahead 3-2 at 18:04 of the third period when his shot from a sharp angle trickled under Hart's right pad.
"We had a set play off the face-off," Stamkos said. "They did a good job of covering it. Just thought I would sling one on, probably got a little lucky, surprised the goalie a little. It was nice to see it go in."
Said Hart, "I wouldn't play that any different. Just kind of an equipment malfunction there. I'm on my post, I'm not leaning over too far. Those pads I've used four times, so they're pretty new. Expect that from older sets, so it's kind of fluky and something I'll look into with my gear."