There are 60 RGB LEDs per meter, and you can control each LED individually! 
this is the digitally-addressable type of LED strip. You can set the color of each LED's red, green and blue component with 8-bit PWM precision

(so 24-bit color per pixel).The LEDs are controlled by shift-registers that are chained up down the strip so you can shorten or lengthen the strip.

Only 1 digital output pin are required to send data down. The PWM is built into each LED-chip so once you set the color you can stop talking to the strip and it will continue to PWM all the LEDs for you

it's 5m in a roll,but cut-able of each single LED where there is a soldering pad on PCB
this strip offering white and black PCB two colors
The waterproof version's tube size is 14mm width