pc grow box 12v power pack melting

hi there i have just made a pc grow box

and i am running 4 of these fans in the case

and i am using this power pack to run these fans

but the power pack is getting to hot its starting to melt these fans are 12 volt and 0.16 amp and the power pack is 12 volt 2.0 amps can any one tell me wy it is getting to hot and what kind of power pack should i use many thanks

bump plz.......................

Since no one else has answerd ill take a shot at it,,,,

Make sure you are using the 12 v line out of the acadaptor cause there is a 5 v wire in there also. The diagram show wires 1 is pos 12 v, an 3 is the neg it usualy has dotted lines on the neg

You cold also wire so that the 2 fans wouldnt drop the voltage ( like with Series wiring), If you wire em up Paralell the voltage should stay the same. It would be wired up kinda like this ... Pos on fan one conected to ac adaptor, neg on fan 1 is wired to the pos on fan 2, then the neg on fan 2 is hooked up the the neg off your ac adaptor.