You can barely notice it, but it still dim and back normal bright like a click every thirty minutes and does it two times per ten seconds. Then it stop and everything is back normal. Then click and dim back normal after in one second, like when you try to turn the thermostat and it tried to kick on, it dimmed the light and went off that fast and didn't come on.
It didn't happen just in my house, but my neighbors and street lights as well. We already got the transformer replaced and it still did the same thing. The power already replaced the old one to a new one and we still have the same issue. I don't know what it can be. Please, please help me understand rather if it's normal or not. Thank you.