When Light Bulbs Explode

My Grandfather, as I have shared in the past, was quite the electrician.  In designing his systems, he was big on indicator lights.  

For the electric heat in our cottage for example, heat on, indicator lamp on, heat off, lamp out.  A simple way to alert you that you may have left the heat on inadvertently.

Well, bulbs burn out.  I, in budding geekdom, decided to take on the task of replacing the bulb.  Old burnt-out bulb out, new little standard 4 watt bulb back in.  Check operation by turning the heat on.  

The bulb exploded in my face.

I am very happy I still have my sight.  Turns out, my Grandfather had engineered for special 220 volt bulbs, and my little 110 was toast.

I actually would like the same system today here, but all the electricians I talk to look at me as if I was from Mars.

My Grandfather - ahead of his time.