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Logic level is relevant when driving MOSFETs directly from a digital output. Previously this was often 5 V, today's logic ICs often operate at 3.3 V or lower. Power MOSFETs often need higher gate voltages to drive the rated current, and most manufacturers filled the gap by producing several logic level MOSFETs, with $V_{GS(th)}$ of 2 V and less, and which can drive several amperes at 3.3 V.