The lamp comes from IKEA and cost 15 Euro, I simply removed the lamp holder from it
and feed the cable from the controller through the hole at the bottom of the "vase".
The RGB Strips can be found on e-bay.
The strips are sold in ribbons 5 meters long and you can buy pieces as short as 10 centimeters.
It cost around 20-25 euro per meter.
I've used a piece of 60 centimeters.
With this lenght you can create a nice ambience but the light is too dim to read a book.
It take at least a couple of meters to have sufficient light to read.
I glued the ribbon with cyanoacrilic inside the lamp in a spiral shape.
On e-bay you can find also the controller, it cost around 15-20 Euro and it works with infrared.
The controller has a set of 16 predefined colors and 4 cycling patterns.
The controller must be powered with a 12V power supply, and it need around 0,6A per meter.
I used a standard wall wart to power it.
The effect on my night table is fantastic and is very handy to have a wireless switch near to me when I wake in the night and need a dim light to drive my steps.