To transact on the Lightning Network you must use an external wallet that supports Lightning.
Firstly, select FUND from the home page:
Next, choose Bitcoin:
Next, select Lightning deposit:
You will be asked to specify the amount you wish to deposit:
Moving the slider across the screen will automatically generate a QR code which can be scanned by other Lightning wallets. You can also copy your lightning invoice by tapping the QR code. The invoice must be manually inputted into your 3rd party Lightning wallet to initiate deposit.
Lightning network deposits will process within a few seconds.
Wondering why your lightning invoices expire? Click here.
For help choosing between an on-chain deposit and lightning network deposit, please see our guide.