FOP's RGB LED Controller will light up to 12 3" Bars, or 30 Feet of any of our Flex LED strips. It has Full rainbow mode, Single Color Mode, Strobe, and Fade mode. Adjustable Speed for effects. 12 VDC Input.. Size: 1 1/2" x 1"W. Controller Only !! This unit comes open wire for your own power supply.You cna light up to 15 feet of Flex LED strips, if you wish more please order our Amplifier unit.