LED light switch for prusa I3 3D printer

To see better the printing in progress, it is certainly more convenient to add an LED strip on the top of the machine.
sorry for my english not very good, i am french

For this change, you need:
- 30 cm LED ribbon, cool white is better to keep the color but it's more "aggressive" than warm white (it costs less than 4 € 5M cuttable such as http://www.banggood.com/5M-300-LEDs-SMD-3528-Flexible-LED-Strip-Light-Non-Waterproof-DC-12V-p-922277.html)
- A switch (such as http://www.banggood.com/1Pc