A's LAB MerV-ERA High Speed Rotor LV30LA's LAB (#OP15157) MerV ERA High Speed Rotor LV30L Feature: For: Acuvance MerV ERA Motor This is a MerV ERA exclusive black rotor that uses a neodymium magnet with the highest class of heat resistance and is equipped with air cooling fins like the standard rotor. It adopts [MFCS], which is the first in the industry to be installed in the LUXON AGILE series, and it is possible to change the rotation and torque characteristics of the motor without