Adrian Caspersz wrote:
How complex would you like this?

I'd separate things and run the fan from it's own power supply that also
supports a circuit that

1) switches the fan off after the lamp has cooled,
2) doesn't allow the inverter to turn on if the fan is not running

A bit of simple logic, or a micro....

--
Adrian C

The fan is not for cooling. It is a mosquito trap and the fan sucks mosquitoes attracted by a chemical compound, heat and UV light. The fan must not stop or the mosquitoes will escape.

I forgot to mention it is a Jata MT8.