12V 5A have four power supplies for USB satellite receiver replaced with a Leicke - each one of these power supplies has been warmer than the Leicke for everybody. These appended still 5 meters with 300 LED - now it takes 47 watts (primary side) with still 12.3V and is only about 40 degrees. Very good.
and pretty small, it is still. With sufficient cable lengths.
Small drawbacks: it takes when switching a half to one second, comes to juice. And the supplier is not as good as the product.