A look at a new high effificny DIN rail industrial PSU from Puls.
http://www.pulspower.com/index.php?reqNav=product&objectId=204
TEA1716T datasheet : http://www.nxp.com/documents/data_sheet/TEA1716T.pdf
Pusl QS40 video : https://www.youtube.com/watch?v=kU63UiZEQZ8