Motion activated lights such as these from Amazon https://www.amazon.com/Outdoor-Wireless-Waterproof-Security-Luposwiten/dp/B078W31942/ref=sr_1_5?dchild=1&keywords=motion+activated+solar+light&qid=1593020731&sr=8-5

These are solar powered so you don't have to worry about plugging them anywhere. I have had a set for over a year and am very impressed with them.

You could also get a dog. Or at least put up a "Beware of Dog" sign. Put a couple of large bowls out (one w/ water in it) to give the impression there is a large dog on the premises.