So to solve this i simply put an on/off switch into the mix :)
Step 1: Mateials:
You can get them for around £10 from any gaming store.
The only other materials you need are:
2x lengths of wire
Step 2: Opening It Up
To do this on the underside there are three screws as seen in the picture. they are located under the felt (you do not need to remove the felt! just run your finger up the felt until you find an indent, that is where the screw is).
Step 3: Altering the Circuit
1) de-solder the black wire from the input socket from the LED
2) solder one piece of wire to the detached black wire and the other piece of wire solder to the LED leg
3) solder the wire from the socket to the middle switch pin and the other wire to one of the other pins on the switch
I have also included color coded schematics below
Step 4: Adapting the Casing
Then you need to super glue the switch to the inside of the case( hot glue gun will work just as well) and re-assemble the case.
Step 5: Finished!
Please feel free to suggest any improvements. :)