Remote ballast location?

[Ljaus]

So I've just set up a 6x24w t5 unit consisting of 3, 2 bulb units that have 3 seperate remote electronic ballasts. My problem is where to mount or locate them, they get warm so I would like them to have some ventilation? Any ideas or tips? And yes my house is gfci protected its law in Australia.

Photos of the ballasts

 

[Pola0502ds]

I purchased 2" wide Velcro and attached it to my power supplies and then mounted them on the bottom of the tank (basically the underside of the tank stand but any surface would work.). The key is getting velcro that has strong enough adhesive on it so that when it warms up it won't fall off. I actually used some super glue on the edges to make sure this wouldn't happen but not so much that I wouldn't be able to remove it.