I was thinking that someone like the Migro guy who does such things tested the HLG 65, 100, and 135 Rspec, IIRC, the 135 was actually pulling a bit over 150 W from the wall. My recollection is that the 100 W was pulling about 100 W and the 65 was pulling more like 72 or 73. If your numbers are correct, then it sounds like these new boards can handle a bit more juice than the ones that they were replacing. We know that 650 is running hot because it specifically designed to replace a double ended thousand watt H ID light, whereas I recall that the 550 was designed to replace a single ended thousand watt light if there is such a thing. We know these newer QBs are flamethrowers and this one seems to be more so