DONGKER Buck Converter,30A 800W DC-DC Voltage Regulator Transformer Board 12V 24V 36V 48V for DIY

The media could not be loaded. This unit is beefy and seems like it can handle the juice it advertises. I tested it with a 150W led array. My power supply, when hooked up to the light directly, powers it all the way up to 144W. Which is for me, in the range of tolerance.I tested to converter with a voltage of 36V and 5A current. Which totals 180w of potential power that the unit could work with. The light runs off 24V so the conversion shouldn't be too much of a challenge for it. As you can see from the picture, It ended up only drawing 108.3 watts from the power supply. The voltage was rock solid the whole time, with barely a .1v drift every minute or so. So that was excellent. The current wasn't getting there though. It capped at around 4.5A no matter how far I turned the pot up. I did it both ways to make sure that I wasn't spinning it the wrong way, accidentally limiting it.Also, after letting it run for a couple minutes, the light began to flicker ever so slightly. It's very slight, about 5% of the brightness, but if you watch in the video you can see it. It only last 1/3 of a second. Not a terrible problem by any means, but something to consider if you are using this in a professional situation. The waveform might not be the most clean/consistent. The fan didn't even need to turn on in the 10 minute test and the heat sink got warm to the touch, but nothing close to hot.Overall, it handled it self pretty decently. With the inefficiency of not being able to deliver the full juice of the demand of a moderately wattage load, it has me second guessing how it might act at the higher end of the capabilities of the unit or more extreme buck situations. But, not a bad unit for a project.