Thermostat switch

I have allready used the search feature but i can say that i am much more confused than before...
For that i have understood:
Stock Ktm fan switch is a 102-98 celcius.
There is a Suzuki fan switch (burgman,baleno) that is a 95-90.
There is another one that is 88 or lower.



Please show me the light.
I would prefer something like 90 (fan on) 85 (fan off) celcius.
How low can i go avoiding a situation where the engine could not warm in cold enviroments?

Thank you all in advance.

My bet that a soon as it is daylight in Belgium Bert will be on with an answer bless him...