Bests & Worsts Reviews from Amazon

I purchased this to use along with my USA bought LED TV back home in India where the voltage level is 240. Pros: Has multiple input selections, and 2 output levels ( 220 and 110), so this is a very generic converter USB charging works RMS voltage (as measured by a multimeter) is pretty close to what it should be. Cons: There is a big banging sound when the unit is energized, guess its normal with any transformer based converters Somewhere the earthing is not correct. if you put a tester into the earth, it glows.This shows that somewhere there is current leakage. I checked the ground to output phase voltage, that is zero whereas my mains ground to phase voltage is nearly equal to the neutral to phase voltage. if you connect your sensitive electronics items like LED TV or home theater receiver with improper earthing, it will be damaged very soon. I bought 3 pieces of this with different wattages, and all of these have the same problem. so I believe this is not a individual unit problem. Verdict: if you are buying this for appliances like mixer grinder or heater, you can still use it, but not for sensitive and costly electronics. On a side note, I bought 1 powerbright and 2 goldsource units, but they look very similar in construction/user manuals/packaging etc. I guess its the same unit but branded differently.