You will need a power supply, it will plug into ac
and provide doc
power. They come with instructions for adjusting them for the proper current, you will need a multimeter for that as well. Depending on the number of LEDs you are using and the control you want you will need to select the power supply. http://www.rapidled.com/dimmable-drivers/
I am using the 48p drivers, you can run 8 to 14 LEDs with this. If you want independent control of the colors you could go with the 27p or d drivers, they run 5 to 8 LEDs. Selecting the p or d is a personal preference depending on how you want to control them. You can get a dimmer knob for the d and just use a simple timer. I have the p and use an arduino micro controller to control the driver with a pwm signal. I have it programmed do fade on in the morning and out at night. It can be done fairly easy with any programming experience.