not a good idea - tealights are a real fire hazaed. eventuslly the flame melts the wax and you end up with a pool of liquid and flammable wax around a naked flame - a slight knock of the surface it's on can spill the wax and turn whatever it lands on into a potential candle.

OR
use this stuff: https://www.fabbaloo.com/blog/2019/1...-now-available