A light module for an exterior light, comprises a circuit board holder, at least one circuit board disposed in the circuit board holder comprising a plurality of LEDs and a cover which covers the circuit board holder and the circuit board disposed therein. Preferably, the mounting apparatus is provided with a mechanism which performs measurement after preliminary bonding and which performs regular bonding while controlling based on the obtained information. , based on: 20-100 mol % of at least one cycloaliphatic diamine; and 0-80 mol % of at least one other aliphatic andor aromatic diamine; and also aromatic andor aliphatic dicarboxylic acids comprising at least 6 carbon atoms. The network bootstrap file is configured to monitor the booting process of the client computer. In case of manufacturing various stator yokes that are different in the axial length, the necessity of replacing a manufacturing machine is eliminated, thereby providing a commutator motor having the stator yoke which is low in the manufacturing costs.