Odd Mod Question???

Does anyone have the know-how to build or if there is such a thing as a low-voltage photo-cell available? I have lights on the front of my CPU case that are on all the time the CPU is. I'd like to wire them into a voltage that the computer would recognise, it's 12 volts isn't it? Actually I just checked, the lights are wired into yellow power wires, aren't they 3 volt? Is this a mod anyone has tried before, I think it would be cool if the lights would only come on when they'd be seen best and it would make the perfect nightlight.
It's a silver P4 ATX Case with on each side (on the front face), two semi-clear plastic rectangle rods fused into the CPU body. They shine an awsome blue light. Does anyone have any idea's??

Wogster.

 

I don't see why that wouldn't work. The photo cell is just a switch. It would be able to break the circuit when the room is bright enough. You may have to do some research to find one that is adjustable enough to work the way you need it to. Some have a bit of a delay, to keep them from flickering.

 

Thanks Longhair, I'll look into different photocells and see what comes up.

Wogster.