Here I have found a box designed for three of those psu. They bolt straight in after conversion and away we go. This was for 36v 15A but could just as easily been 12v 45A with a quick rewire.

Also built some using 6 psu units for 30A@43v.. or 1.2KW. for the bigger Trojans (L16's).

 I have designed and built my own units for this kind of power, but for the time and effort and in my case... reliability, ( I must have used up a weeks supply of International Rectifiers output capacity of FETS just testing the dammed things. The psu is a better answer....it takes longer to build a decent box to put it in than the conversion.

And if you do blow one up, toss it and dumpster dive for another (or fix it which is easy as well when you get the hang of them.)

When you have modified them as described, they are difficult to kill, can be put in series or paralled  it makes no difference to them. BUT you must isolate the circuit board from the case in order to use them in multiples. This can be as simple as a rubber "O" ring under the tracks where the screws hold them to the psu case.

150 amps would be easily achieved with 10 units in parallel. window of 140- 260v ac or using voltage doubler (built in) from 75v-140 ac There is usually a MOV to help protect against overvoltage as well... if feeding dc then X 1.414

Max DC at 10A is probably about 25v. At 12v (13.7 etc) should get 20A if you want to push them, better at 15A.

Remember to change the caps to a higher voltage on the secondary if using over 15v on the output.

The output diodes get warmer than the switchers. Efficiency should be same as a normal psu. I don't know what that is, but I assume 85-90%. Below 150w, you can probably design passive cooling for the little critters.