Su-Kam Power Gaurd 6 Amp Voltage Stabilizer  (White)

one of the best thing in the market. you can use it for any appliances, i used tv,laptop and even i plug my chargers to it as it helps in keeping phones safe from fluctuations. i highly recommend it to everyone

This is not a voltage stabilizer, it will not give you normalized voltage as output.
It just protects the appliance when the main power supply goes below 110 volts by disconnecting the power. And it disconnects whenever there is over voltage exceeding ~290 volts or so.
Been using it over 3 years now and works like a charm. Best value for Money.

Keep in mind that this is not to regulate the voltage but this cuts line, when voltage is low or high for specific limits. Cheap and best suitable for product like Laptop, Tablets, mobile etc. which has it's own battery and has no impact due to power cut.

This works very well in normal sockets. Just plug in and connect your set of equipment to it via extension wire. Keep in mind that it can support up to defined wattage output.

I am using it for 2 months now and fully satisfied.