[Serum]

In which the star (as lehner calls it) is Wye and they come standard as a Delta winded.

Leroy;

A delta gives sqrt 3 (1.73) times more power than star, and the RPM is sqrt 3 times higher. Lehner calls it; buying two motors for the price of one.. :p

I borrowed a few pics that perfectly explain what the differences in windings are;

It is for an outrunner, but the principle stays the same;