single wire for 80 watt tec?

im fitting a dd4 tec block and wondered if it will be ok to run a single cable from my psu, i was going to do 2 but if i dont need to 1 would be easier - if im doing 2 do i just need to take 2 wellow and 2 black cables and join them together like running parallel? let me know,

thanks,

TARZAN.

Moved to extreme cooling. *nudge*

For an 80 watt peltier you would be just fine to run one cable. For anything over 80 watts I would recomend running two cables or one larger one.

I jsut use one, and it also powers my fans. Works just fine. Doesn't even get warm at any place except my solder joint.