I’ve been experimenting with my Shelly dimmer in the Netherlands, where our energy provider occasionally sends tone control signals over the mains. These signals, often noticeable near 50Hz transformers, have been causing some unexpected behavior with my lighting setup. I’ve installed some wall lights with dimmable G9 LEDs, but they’ve been prone to overheating and frequent breakdowns. To address this, I switched to Halogen bulbs, hoping for a more stable performance. However, I was surprised to find that the Shelly dimmer itself is extremely sensitive to these grid signals, even when using Halogen lights. During the signal transmissions, typically around 21:00 to 00:00, the lights flicker violently between off and full brightness, which is quite disruptive, especially during bedtime.
I’ve tried calibrating the dimmer as suggested in the documentation, but the process is often unreliable and results in a limited dimming range. Sometimes, the dimmer only reaches a quarter of the maximum brightness, which is frustrating. I’m curious if others have encountered similar issues and if there are any settings or workarounds to mitigate this problem. Has anyone successfully used the Dimmer2 calibration feature to resolve such sensitivity? Any insights or experiences would be greatly appreciated!