Bolts is a non-custodial wallet that allows you to hold an on-chain balance and a "L2" balance.
The L2 balance is held in Liquid, but you can pay lightning invoices from your balance there.
Ultimately, I utilize this tool to consolidate small UTXOs over time before withdrawing more responsibly sized UTXOs.
There is also a privacy improvement, as by nature of Liquid, the UTXOs you send, are obfuscated from the UTXOs you withdraw.
Aqua uses boltz for their on-chain/Liquid to Lightning exchanges.
As with any new tool, only use a small number of sats to play around with it and familiarize yourself with its operation before using it with any more substantial amount.
For more info on Liquid, here's a link: https://help.blockstream.com/hc/en-us/articles/900001408623-How-does-Liquid-Bitcoin-L-BTC-work#:~:text=Liquid%20Bitcoin%20(L%2DBTC)%20is%20a%20special%20type%20of,Federation%20on%20the%20Bitcoin%20mainchain.
