I purchased six of these and none of them have red lights when I plug them in. Instructions do not say I am supposed to do anything but plug them in?

I don't know what red light you are talking about. These don't have a red light. The night light is white only. Other than the white light there is no other indicator that the unit is plugged in and has power.

These units are equipped with night lights and do not have red lights. As long as the night light is on, the unit is working properly