Lake Superior Beach Glass Shadowbox Plugin Nightlight with on/off switch.  Lake Superior plug in nightlight beach glass displays allow you to show off your sea glass collection with a soft white glow. The face of these night lights measures 4 inches tall by 3 inches wide. The night light base fits a standard 110v outlet and has an on/off switch for easy control. The included lightbulb is a 7w incandescent candelabra bulb. You fill the nightlight display from the top where we've included a .75in x .5in slot. This will fit most small beach glass pieces. Beach Glass is not included.