Good to see someone building Amiga PSU's and I love in the description it says "I have run these fully loaded 24/7 in hot texas temperatures over the summer with no problem.Some of our summer temps resemble that of australia and other places where heat is a problem for electronics."
I lived in Sydney for 31 years and never had any heat problems with my electronic's. Temps are actually nice there 50F low in winter to 98F high in summer, I currently live in Central America (USA) and the temps here are crazy ... 24F winter and 110F in summer.