Sonoff T1 with fluorescent tube

Hi guys

I have issue which I have no idea how to solve…

I installed Sonoff T1 2 gang with tasmota (which in this case doesn’t matter) and I connected to this 2x4 fluorescent tubes.
Partially it works, but quite often, after turning off lamps (sometimes if I turn on as well), Sonoff makes fast reset, couple of times (like 1–4 times in like 1-2 sec max).

Any ideas why this can happen?
I already installed ferromagnetic filter on cable, but this didn’t help…

Too bad… nobody responded…

I installed 3x ferromagnetic filters on power cable and seems to be uncomparable better :slight_smile: So, fluorescent tubes generates big drops and spikes in voltage where Sonoff internal power supply can’t handle…