MOSFET technology offers many advantages compared to other types of electromechanical and solid state relays in the market. Such advantages are: no physical contacts; therefore, no contact bounce. Greater resistance to shock and vibration, and no moving parts. Silent, no clicking sounds when it operates, longer life as there is no contact degradation, its electrical life is semi-permanent, and as MOSFET relays do not have a coil, there is no need for a surge absorber on the input side.