Carrington finished with a team-high 17 points and a career-best 15 rebounds. Anderson matched his career best with 16 points and added a career-high 12 rebounds for the Mountain Hawks (8-3).
Lehigh led 32-19 at halftime. Longwood had 25 fouls, more than double the Mountain Hawks' 11.
Lehigh is off to its best start to a season since 1980.