PTC heating elements

[kneo1812]

Hello.
I have been experimenting with some ptc heating elements, the ones that come in a rectangular aluminum extrusion.
Its a 100x21mm that is rated for 110v and 230 deg c. There are great variety on aliexpress.
I am interested in a temperature of 210 deg C but I cant find one specified in 110v. I have noticed that in 220v they come in 10 deg C intervals.
What temperature I would get if I power the 210c/220v ptc element with 110v?
Isnt the ptc ceramic just burns the electricity, does it matter the input voltage?
Does any manufacturer make ptc elements in precise temperature?

 

[Lucien Nunes]

With all other factors equal, at any given temperature I would expect the 220V element to deliver 1/4 of the heat output on 110V. However. if enclosed so that minimal heat could escape, it would heat up to the same or nearly the same target temperature as on 220V.