Use of transistor for switching 120AC

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Hoping someone could give me hand with this concept.
I need to switch AC to a load based upon a small voltage input of variable amplitude.

My idea was to use a FET, with the input at the gate, load(consider it a lightbulb) between 120AC and the drain, and the source straight to ground/ the dead half of a household AC plug.

I'm concerned about transistor selection, and the potential for reverse biasing on the negative swing of the 120AC.

Any input is appreciated.
 
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