K.C.
Sounds very much like normal toddler behavior to me. I'm not sure how old your child is, but if he's one or two, I'd say totally normal. The shoelaces and toys would also seem common to me in a preschooler (or, if not common, at least not unusual). I would say by age 3 the fascination with the lights is usually gone.
My two year old daughter will push her stool all around the downstairs of the house to turn lights on and off.