I bought 5 brand new devices, out of which 2 were not working... The third one made a strange noise internally within the first five minutes and the output was the same as the input, 245 volts, which means it stopped functioning properly. Stay away...

Very good, it has been working continuously for 2 years at 20-30A, no problem even with the start-ups of 2 24000BTU air conditioners. *If its construction was a bit more careful, I would give it 5 stars.

I have it for 8 years, in the 3-4 years the delay button broke and around 7 it broke again. Now when I turn it on it works but for 1 minute it makes a ticking sound and then stops. From what I have heard, devices like this are not meant to last for many years. Until it gives up, it works fine, it does its job.

First of all, I have to say that the product arrived with the Tele logo on it, not Kebo. The build quality is quite good and its size is a bit large for the living room. It has a Schuko socket on the back and a relay button on the front. It loses a star from me because the construction could be a bit better overall and because it doesn't have two small LEDs on the front indicators to be visible in low light conditions. Other than that, I have absolutely no issues and its performance is flawless in power adjustments.