How can I connect 50 rgb led's parallel to a 12v 2a line?

How can I connect 50 RGB Led's parallel to a 12v 2A line?
Actually I got a RGB LED Mini Controller and now I want to light 50 or 60 RGB LED's From that controller,
mini controller description,
● Connection mode: Common Anode(+)
● Input: 12V
● Output: 12V 6A (72W)
● Max load current: 2A each color
● Support 10 meters SMD 5050 30LEDs/M LED Strips or 5 meters SMD 5050 60LEDs / M LED Strips
Asked Apr 15, 2013

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