Coinbase (NASDAQ: COIN), the largest U.S. crypto exchange by trading volume, is rolling out support for the Lightning Network from today, enabling a faster and cheaper way for its users to send, receive or pay with Bitcoin (CRYPTO: BTC) directly from their account. Previously, bitcoin transfers on Coinbase were processed on-chain, meaning transactions could take between 10 minutes and two hours, incurring high fees during periods of network congestion. Launched in 2017, the Lightning Network is a Layer 2 protocol built on top of the Bitcoin blockchain, designed to address scalability issues vi…