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YOU HAVE TWO PLUGS USING THE ONLY TWO OUTLETS IN THE GARAGE. i WANT TO [PUT IN A THREE WAY PLUG SO IT CAN SHARE THE OUTLET WITH MY CHRISTMAS LIGHTS IS THIS OK?
Why ask that here’s?
if you just buy a surge protector you can plug in as many as it will handle.
to change the power outlet to a three way I would consult an electrician