Lights-On warning buzzer?

[guest3144]

My partner,bless her, has for the 2nd time, left the lights on today and returned to
a flat battery.

Is it possible to fit a warning buzzer that sounds when ign is off/lights on?

Thanks, Nige

[DV]

When the key is out of the ignition and the lights are on and I`m opening the drivers door my buzzer is always on. Check the fuses in your car.
When the drivers door is open is the interior middle light turns on? In my car it does.