It is for an RF amplifier for 2 meter band. It will have two 4KW water cooled Russian tubes. I have 300 amp 220v service here at the house, when I built it I asked for it specifically. I just want to build a PS that I can actually move. I built a conventional PS for a 10KW amp I did once and it weighted over 300 lbs, we had to move it with a fork lift... I was just trying to get it smaller and lighter if possible... Most SMPS designs are lighter and smaller then their counter part would be in a standard design....