I don't take unsolicited proposals from anyone but the Cosmos, but thanks for thinking of my health and the vitality of Gaia Sophia, dear @solarisfuture ! I have faith in my and Gaia Sophia's capacity to accomodate an occasional stearic candle. 😍
It's rather insensitive to folks without extensive fiat income, to suggest that they invest in incredibly expensive systems like you mention.
Like many folks living simply, I choose what is available and affordable locally. Plus, any candle flame is far preferable to me to an LED!