How much power do case fans use?

[horsemeAT]

I know this is probably a simple answer, but i at least want to make sure they don't use a lot of power. The fans i'll be using:

http://www.amazon.com/Corsair-Series-AF120-Edition-Airflow/dp/B00F6S10KK

I have an XFX ts 550w with a gtx 960, i'll be fine right? I plan to use 5-6 case fans, and i know the page says the power draw, but it jsut says in Volts, and i really only know how to tell with wattage..

 

[Dark Lord of Tech]

Corsair CO-9050016-BLED 52.2 CFM 120mm Fan 1W - 5W

 

[Rami Zerker Reini]

1 of those fans is 4,8 watts so times 5-6 = 24 watts - 28,8 watts Max