Two speed 3amp diode.
Important these are directional the silver band end of the diode attachés to the single speed side of the switch with the yellow wire. If faulty this can stop second speed.
Note:
When carrying out repairs on your clipper it is always worthwhile disconnecting the power supply before fitting your replacement parts. please do not force any spares into place as this may cause damage to the products.
Carrying out repairs may void any warranties from your suppliers please read their warranty or guarantee information before commencing a repair.