Customer Reviews for VEVOR 500VA Variable Transformer 110V 60Hz Input Voltage Digital Display 0-130V Output Automatic Voltage Regulator for US Plug…

It claims to be a "20A" unit, as noted by the 20A fuse in the unit, but... -- the power cord is only rated for 16A and 70°C and... -- the outlets are only rated for 15A (each), and still exceed the "20A" unit rating by 10A, if maxed out.While I don't believe anything bad would happen during normal intended use, one might consider replacing the 20A fuse with a 10A fuse, so the fuse works as intended and blows out before any damage can occur.Thanks

Husbands very happy with it

I bought this so I could safely apply power (slowly) to my AL-811 amp that had been sitting around for a few years. It performed perfectly. Since then, I have seen quite a few of this exact model at various places - hamfests, people's house, and so on. And they use them all the time as well. So I would say that this would be a great choice for anyone who needs to do this, and/or for other purposes (such as fix a low voltage or over-voltage problem). Very happy 5-star from me.While using it, I had a kill-a-watt voltmeter/ammeter/wattmeter plugged in to it, so I could have a reading that I already trusted. The voltage dial on this device was a little bit off, maybe 10%, but it's a small meter and at least repeatable, if that matters to you. I assume that you already have a way to measure voltage :)

I like the color, excellent ventilation. Working great to quiet down noisy HEPPA air filters.

Nicer than advertised

Good

I find this transformer to be VERY well built and extremely useful. The back-lit digital voltmeter is an added plus. Testing with a multimeter reveals the voltmeter to correlate well with observed values, averaging between -0.1 to -1.3V. That's pretty accurate for the price! Although specified output is 0 to 130V, I measured a maximum output of 149.6V. I'm very satisfied with this device.

Works great... use a voltmeter to verify the actual output though. The voltage on the display is off by a few volts.

There's more than a few of these Variacs (by different names) around, but this was the only one I found that had the digital volt meter. The unit works very well... just as a variac should. The digital volt meter is very accurate from 0-50v and above that it's +/- about 2 volts (as per my Fluke 87 DMM).For this price the value is great, I've had variacs before and this one is on par with ones costing much more.

Use this with coffee bean roaster to boast the voltageWorks great