the home was built in the late 1950's, no ground wires that i have noticed. A four foot two tube fluorescent fixture finally gave up in my laundry room. It was probably about 30 years old. It had a ballast that was not grounded. I am thinking of replacing it with a four foot LED fixture from one of the big box stores. Just wondering if it will function okay without a ground. Instructions for most of them indicate they must be grounded.