That was the one I was using and got the Mega Watt 400. For some reason the Mega Watt 350 was giving me very high wattage readings despite what meter I used. I experimented with different types of power supplies including a portable jump box with seven hundred amps, a one thousand cca battery, a Cosel 52 amp power supply etc and they all gave me the new wattage ratings I quoted today (250 watts DK) with different meters also actually just sold the PDC-600 the other day eBay. I don't know why that Mega Watt 350 gave readings of 500 watts but it was the causeThat's a 1 driving 8 mosfet amp, I think it runs rebadged irf520 mosfets
That being said you would really need to be careful on how much power you are running into it
Is your power supply this one? High Power 12 Volt Power Supplies With Adjustable Voltage the s-350-12?