Microtek EM4090 90-300V Digital Voltage Stabilizer (Metallic Grey)

I was in Gurgaon where voltage fluctuate even upto less than 90 sometime in summer nights as everyone having AC and load suddenly increased. But this stabilizer saved me as my inverter AC will continuously working fine even upto 90 volt. Other AC may create trouble.Yes obviously flow and cooling of air will be reduced but you can sleep comfortably.

Working perfectly even low voltage down 100v product was expensive but Working good

Microtek it's excellent brand, I'm using this Brand product since last 14,years ago, recently 15th of March the product microtek stabilizer model no. EM4090, but the product I got was default, then replaced it and I got another peice,, but the people who delivered the product is very unprofessional and they damaged the product during the delivery . I'm not at all happy with the service at all, I'm very disappointed that the product was getting continuously tripping nd getting heavy noise . The electronic items I'm purchasing from the Amazon platform due to I tryst this platform but this time I am very shocked to know that I received default product even after replacement.

Too heavy. It was difficult for me to hold in the wall. Size is also bigger

The media could not be loaded. After 15 days of used and writing this review, stabilizer is working fine, in my area when input is bet. 250V to 270V and output is 219V to 222V, delay time is 11sec. handling capacity at max 1.5 Ton AC / 1900 watt load, installation is little bit struggle bcoz separate plate attachment type, overall fine.

Pros -1. Does work at voltages as low as 150V.2. 2 years warranty (V-guard gave only 1 year warranty)Cons-1. I don't understand why at night time when the voltage is 155-170V, it keeps working fine but at day time when the voltage is consistently between 175-190V, the compressor keeps tripping. The compressor would run for few seconds before vibrating violently (as it does when losing voltage) before turning off after which the AC would only work as a fan.2. There's a noticeable difference in the compressor speed when the voltage is low.

Value for money,this is my second purchase of Microtek product,works as it should be and it really made a difference on the output,so far so good,it's heavy as a rock👍

I shall be highly obliged to inform you that microteck given 2 years of warranty but they don’t have any warranty service official phone number.I have been purchased 3 products from microteck and one of them was not working after 1 month. What can I do for this not working product & where’s your official warranty contact number??