Exterior driveway lights flickering when powered.

We have driveway lights that also run to lights on the back patio. The lines are buried underground and plug into an outlet in the garage. Yesterday lightning struck the field behind the house and now when the lights are plugged in they just blink, almost as if on a timer, it looks like a runway. Let me also mention the street light in the front yard by the road also blinks. However the street light only blinks during the day and when it’s time to come on in the evening it lights up like it should. But I’m the morning when the sun comes up it’s back to blinking. As I said my driveway lights are plugged into an outlet in the garage but anything else you plug into the same receptacle works just fine, no issues. After the storm my garage receptacles were not working so I checked my breaker and it was not tripped, no breakers were tripped at all. However one gfci on the other side of the garage was tripped, I reset it and then the garage receptacles worked just fine. Now I am just stuck with blinking lights. Does anybody know why a set of lights will blink like that, almost as if they were on a timer but any other light that i plug into the same receptacle works just fine. Any advice is appreciated I really don’t want to purchase new lights and dig all that up and run new lights.