Simran THG 750 2Way -Heavy Duty 750 Watts Conituous Use step Up Down Voltage Converter Transformer - AC 110V/220V for Worldwide Use. Review

My company deployed several of these units at overseas locations.One location had a problem with a unit getting very hot, so I brought it into the lab for analysis.What I found was appalling.Every solder joint was cold and a slight tug was able to break it loose or break the few remaining wire strands loose from the joint.Most joints had nearly half of the wire strands broken away from the soldered connection. This effectively cut the current carrying capacity in half.

I then pulled every unit from our stock room (approximately 12) and individually opened them for inspection.Without exception, everyone was of equal crappiness.

After reworking every connection in every unit, I set one up for bench testing.I ran the unit at 50% of the rated power for 4 hours and noticed no anomalies.I then increased the load to approximately 90% of the rated value and within 30 minutes the plastic 110V connector on the front of the unit began to melt, so I shut the test down.

The model that I tested was the Simran 3000 watt unit, but I have no doubt that every model that comes from that company is of equal workmanship.The units are built in China, with blatantly unqualified labor.

If you are handy with a soldering iron, these units can be made to do what they are supposed to do.That's why I gave it one star.I would, UNDER NO CIRCUMSTANCE, use one of these things without opening and reworking it first.I would also de-rate its maximum rating to 60%.In other words, I would not operate the 750 watt unit at loads over 450 watts.Be warned, this is a dangerous piece of junk if not reworked!

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Product Description:
750 Watt maximum capacity heavy-duty continuous use transformer» Converts 220/240 Volts down to 110/120 Volts» One grounded outlet in front of unit (accepts 3 or 2 prong US and Euro plugs)» Hard wired with a European Shucko plug also good for Asian outlets » Built-in fuse protection » Durable design with a heavy-duty cordWeight: 10 LbsDimensions(LxBxH): 7" X 5" X 4"Transformer Purchase Guide:Remember to leave at least a 100% slack for the transformer. For the TVs, the power surge margin is 5 times the wattage of the TV. Heating appliances, laser printers and power tools spike when you turn them on. For these products you need to buy a transformer that is at least 3 times the items capacity.

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