Notes from the manufacturer with the assembly instructions state the solar bulb/battery is loose, tape it with duct tape.....  sigh.. we did.. everytime the mailman opens the box, it jiggled loose.....  We took it apart and after examining the "wiggle" came up with our own "bush fix" to keep the lights on.....  It would be better if the manufacturer, upon discovering this little defect, had provided a better option than "Wrap it in duct tape"....  That said, the mailbox is very sturdy, watertight and just beautiful.