Uniondale, NY – Tomas Fleischmann, Kris Versteeg and Jack 1, at Nassau Coliseum.
Tyson Strachan also lit the lamp for the Panthers, who have won three in a row.
Jose Theodore stopped 26-of-27 shots to post his first win since December 27.
Frans Nielsen provided the lone offense for the Islanders, who finished with two losses on their three-game homestand.
Evgeni Nabokov was charged in the setback with four goals on 15 shots through two periods. Al Montoya finished the game by making four saves.