The Lightning Network is Bitcoin's layer-2 payment rail: payments route through bidirectional channels instead of waiting for on-chain settlement, so they confirm in milliseconds at a fraction of on-chain fees. On U.CASH, Lightning is a first-class payment rail: checkouts can settle to a Lightning invoice you control, and payouts can go out over Lightning too. For on-chain Bitcoin payments and swaps, see the Bitcoin page.
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Payment channels over Bitcoin (layer 2). Settlement on U.CASH is non-custodial: every payment moves on-chain, direct to a wallet you control. Confirmation policy for Lightning Network: Invoices confirm on payment (near-instant); channel closes anchor to Bitcoin.
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Peer-to-peer electronic cash forked from Bitcoin.
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One account unlocks accept, swap, buy, and the rest of the U.CASH network across 35 networks.