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)

Title: Perfect Stabilizer for AC – Working Flawlessly! I recently purchased this stabilizer for my air conditioner, and I am extremely satisfied with its performance. As you can see in the setup, it is working perfectly with my AC and maintaining a stable voltage (around 209V). The display is very clear and helpful to monitor real-time voltage. The build quality looks premium, and the overall performance is smooth and reliable. After installation, my AC runs safely without any voltage fluctuation issues. It gives complete peace of mind, especially in areas with unstable electricity. Highly recommended for anyone using an AC – this stabilizer is truly worth it!

Excellent work for 1.5 ton inverter ac thanks amazon.

Everything working good... But the ring light sensor is not working properly.. apart from that everything is good

So I am writing this review after using the stabilizer after one month. The size of the stabilizer is slightly big, which I feel could have been little less in size. Not a light weight. However it controls the voltage fluctuations efficienctly and indicates with the LED ring lights. The noise level is certainly very low. Overall a good product but the price is little higher.

I recently installed the V-Guard iD4 Ace 5540 for my 1.5-ton inverter AC, and the performance has been flawless. Living in an area with frequent voltage shifts, I needed something that could handle a wide range, and this stabilizer's 130V-280V working window is perfect. The build quality is solid, and the digital display is a standout feature—the color-changing LED rings (Blue for normal, Red for cut-off) make it very easy to monitor status at a glance. It operates silently and the 'Intelligent Time Delay' gives me peace of mind regarding compressor safety. If you own a premium inverter AC, this is a must-have investment for longevity.

Product stopped working within 3 months. Despite multiple follow ups and escalations, no support is provided. A tech visited after repeated chasers, mentioned spare part would take 7 days and after 2 days, they closed the complaint without resolution. Stay away, product not reliable and after sales support is poor. Only option left is consumer court, Vguard support doesn't respond despite escalations.

This machine is good by quality as well as it's premium finish

Beautiful stabilizer so far it's working properly. Let's see in future. But one thing's it is looks a bit large . Bought this in Rs. 4850 from Amazon got delivery in 2 days. Model id4 ace 5540 vguard. 130-285 range No noise , looks simple stylish