I finished loading the revision 2 board today and found two more bugs in the code.

You can see that this one is loaded with four AA battery holders and the board is the same size as the batteries. The board can be loaded with AA battery holders or 123 battery holders making two configurations out of one board.

In the final version the connector will disappear, the IC and the secondary LED will all move down to the PCB. The only holes in the top will be the photo sensor, button and the two LEDs with the amber LED being a tiny SMT LED down on the board.

What the final top of the primary LED is still under investigation of how best the handle the light from the primary LED.

In the above picture is a prototype of a light house style beacon that has a special diffuser material in the core of the glass tube.