The Perun MOSFET is the smallest MOSFET device on the market. A specialized, ultra-low resistance transistor used in the MOSFET channels power from the battery directly to the motor, reducing the load on the mechanical switch contacts to a very small current that turns the MOSFET on and off. This greatly extends the service life of your device and lowers overall resistance, which results in a more dependable Blaster with a higher rate of fire.