What is Lightning? June 02, 2020 14:38 The Lightning Network is a fast, low fee way to pay with Bitcoin. Please check the Lightning section of our FAQs for more information on how to get set up. Related articles How do I set up a Lightning wallet? What's the difference between Bitcoin and Bitcoin Lightning? Should I pay on-chain or with Lightning? How do I open a channel with you? How do I send a card as a gift?