LED Photo Sensor
This photo sensor will turn your LEDs on when it's dark. And turn off your project when it is light.
This 1 Amp light sensor can run up to 45 LEDs. We have added 8 inch input wire and 4 inch wire on the output side. You can of course cut the wires shorter but remember which side is which!
The sensor is just the small bump in the middle, so it will be easy to hide.