The Lightning Network is a second-layer protocol built on top of the Bitcoin blockchain. It allows for instant, low-cost transactions by enabling users to open payment channels with each other, rather than recording every single transaction on the main Bitcoin network.

The Lightning Network enables all sorts of exciting use cases, like instant micropayments, pay-per-use services, digital tipping, and more. It also has the potential to bring financial services to the unbanked and underbanked around the world.

A Lightning Network channel is a peer-to-peer payment channel that enables instant and low-cost transactions between two parties.

Like Batman protecting Gotham, the Lightning Network has multiple layers of security to keep your funds safe. With features like multi-signature wallets and onion routing, your sats are in good hands.

While the Lightning Network is great for small, frequent transactions, it may not be ideal for large transactions due to liquidity constraints. For larger sums, it's best to stick to on-chain Bitcoin transactions.

The Lightning Network's instant, low-cost transactions make it the ideal payment solution for the fast-paced world of web3 development. Developers can receive their rewards in Bitcoin almost immediately, without the hassle of high fees or long confirmation times.

⚡️Zaps are a way to send a small amount of Bitcoin (sats) to someone's Lightning wallet, along with a message or information, like a memo or a link. It's like sending a text message, but with a tiny amount of Bitcoin attached.

Sats (Satoshi's) are tiny units of Bitcoin, like pennies to dollars, used for small transactions on the Lightning Network, perfect for rewarding bug hunters with micro-payments.

mSats are each 1/1000 (a thousandth) of a satoshi. A satoshi is the smallest unit for bitcoin, but lightning can transact with even smaller units while channels are open. The amount is rounded down to the nearest satoshi when the channel is closed and broadcast to the blockchain to adhere to bitcoin's limit.

Lightning Network transactions can fail for a few common reasons. The most frequent one is usually just not having enough funds in your channel to cover the payment. Make sure you've got enough money in the account you're sending from and don't forget to factor in the network fees (~2% of the total amount you are trying to send).

Another common issue is the transaction not being able to find a route to the recipient's Lightning node. If that happens, just try again a few minutes later.

The Lightning Network is still evolving, so some failed transactions are normal. But those two things - insufficient funds and routing problems - tend to be the main culprits when a Lightning payment doesn't go through.