What is the Lightning network?

The Lightning Network is a faster way to send and receive Bitcoin without waiting for every payment to be confirmed directly on the Bitcoin blockchain.

In Bitnomi, Lightning payments use your BTC Pay wallet.

Why use the Lightning Network?

Fast payments

Lightning payments are usually completed almost instantly, making them suitable for everyday transactions.

Lower fees

Lightning fees are generally lower than on-chain Bitcoin fees, especially for smaller transfers.

Useful for everyday spending

Lightning is well suited for frequent payments, smaller transfers and situations where speed matters.

Still uses Bitcoin

Lightning does not create a different asset. You are still sending and receiving Bitcoin.

How long do Lightning payments take?

Lightning payments are usually completed within seconds.

The exact time may depend on:

• Network availability

• The sender’s and recipient’s wallets

• Whether a valid payment route is available

• Whether the Lightning invoice is still active

A failed Lightning payment normally means the Bitcoin was not sent.

Why can Lightning fees change?

Lightning payments may include a small network fee.

The fee can vary depending on:

• The route used to complete the payment

• The number of connections involved

• The payment amount

• Current network conditions

Bitnomi will show the applicable fee before you confirm a Lightning payment.

When should I use it?

The Lightning Network may be suitable when you:

• Want to send Bitcoin quickly

• Are making a smaller payment

• Want lower transaction fees

• Receive Bitcoin for everyday use

• Are paying a wallet or service that supports Lightning

For larger or standard Bitcoin transfers, the on-chain network through BTC Vault may be more suitable.

Lightning in Bitnomi

What is a Lightning invoice?

A Lightning invoice is a payment request used to receive Bitcoin through the Lightning Network.

It may include:

• The payment amount

• An expiry time

• Payment information

• A QR code

An expired invoice cannot be paid. The recipient must create and share a new one.

What should I check before using it?

Make sure both the sender and recipient support the Lightning Network.

Do not use a Lightning invoice for an on-chain or Spark payment. Choosing the wrong network will usually cause the payment to fail.