V-Guard iD4 Ace 5540 AC Stabilizer for 1.5 ton Inverter AC | Digital Display with Colour Changing LED Rings | Intelligent Time Delay System| 3 Year Warranty | White (Working Range 130-280 VAC)

I recently purchased the V-Guard iD4 Ace 5540 AC Stabilizer for my 1.5-ton inverter AC, and I must say, it’s been an outstanding investment! The stabilizer is sleek and compact, and it does a fantastic job of keeping the voltage steady, which is essential for my AC's performance. The design is modern, and it’s built to last with high-quality materials. I’ve noticed a significant improvement in the efficiency of my AC since using this stabilizer. It protects the unit from voltage fluctuations and ensures smooth operation. The stabilizer is also very quiet, which is a bonus. Installation was easy, and the device works flawlessly without any issues. I highly recommend this stabilizer to anyone looking to protect their AC and improve its longevity. V-Guard has truly delivered with this product. Worth every penny!

All the features of this stabilizer are good it works silently and efficiently. The only thing is the LED, which dims a bit, but on the bright side (pun intended), it still doubles as a night light, so you won’t need a torch. Just wish they had given an option to turn off the LED light.

Product is good, but packing is not good. Scratches are there

This product comes highly recommended for all users, particularly those with a 1.5-ton air conditioner. It performs exceptionally well without any problems, boasts an attractive design, offers excellent features, and provides good value for the price. The display is also quite pleasing.

Purchase it twice. Good product, do what it’s supposed to do. Also a little bit expensive.

I bought the V-Guard iD4 Ace 5540 for my 1.5-ton inverter AC, and I must say, it’s been working flawlessly. I live in an area where voltage fluctuation is pretty common, especially during summers, and this stabilizer has really helped keep my AC safe and running smoothly. The build quality is solid, and the design is sleek enough to blend in with the wall. It doesn’t feel bulky or outdated. Installation was quick and hassle-free, and the technician explained everything clearly. One of the best things is the digital display – it shows the input and output voltage in real-time, which is very useful. It also has intelligent time delay and low/high voltage cut-off protection, which adds an extra layer of safety for the AC. Since using it, I’ve had no issues with tripping or AC restarts during voltage drops. It gives me peace of mind knowing my expensive AC is well protected.

Received 2025 model and its making humming sound

Purchased it for 1.5 Ton Split Inverter AC (working Range 130-280 VAC). Timely delivered and Packaging is good condition. It is look very nice and review after one month it works accurately and efficiently with the input voltage and output i.e. performance was as expected. Display of voltage is in blue is good, but at the time of sleep this display blue light is too much bright in the dark bedroom. No noise issue, value for money. Overall, this product is very good.