Door Numbers

Another thing that's been in my brain for a while but now coming along in reality. A wooden box, mounted by the front door, providing illuminated door numbers at night. I like that fact it needs no wiring or power but my main reasons for the design are emotional. Ideas of a welcome, feelings of pride and identity.
An integral solar panel charges during the day, automatically switching on a backlit panel at dusk. The numbers being stencilled onto the inside of the glass front.