Thank you. I learnt something in your comment.

adexmakai4211

Please read and learn more about how LN works.

So there's no such thing as "convert" sats from onchain to LN. What you wanna say is a submarine swap from onchain into a LN channel.

bitcoin

Ask SN : Is it possible to convert Bitcoin on-chain transaction in LN wallet?

Please read and learn more about how LN works.
1. bitcoin onchain are the same sats on LN.
2. On LN the sats are actually delayed txs that are not yet broadcast.

So there's no such thing as "convert" sats from onchain to LN. What you wanna say is a submarine swap from onchain into a LN channel.
Resources:
- https://lightning.network
- https://lightning.how