买币
行情
现货
合约BTC
理财
活动中心
福利中心
更多
1. What is the Lightning Network? The Lightning Network is a scalability solution built on top of Bitcoin, allowing users to quickly send and receive small amounts of Bitcoin with minimal fees. In1. What is the Lightning Network? The Lightning Network is a scalability solution built on top of Bitcoin, allowing users to quickly send and receive small amounts of Bitcoin with minimal fees. In
新手学院/加密货币基础/热门概念/What is the Lightning Network?

What is the Lightning Network?

Sep 21, 2026
5 分钟
分享

1. What is the Lightning Network?


The Lightning Network is a scalability solution built on top of Bitcoin, allowing users to quickly send and receive small amounts of Bitcoin with minimal fees. In simple terms, the Lightning Network functions as a second-layer solution for the Bitcoin network.

The Lightning Network conducts transaction processing off-chain, with only the final transaction result confirmed on the blockchain. This enhances the transaction efficiency of the Bitcoin network, enabling users to complete payments at reduced costs and faster speeds.

2. Why is the Lightning Network Necessary?


2.1 Enhanced Transaction Speed


Bitcoin's native network can process only about 7 transactions per second, while everyday electronic payment systems can handle tens of thousands of transactions per second. This results in a subpar payment experience within Bitcoin's native network. The Lightning Network, on the other hand, conducts transactions off-chain and confirms the final results on the blockchain, significantly boosting transaction speed.

2.2 Reduced Transaction Fees


Bitcoin transaction fees follow a competitive bidding model. Users must pay a certain fee for each transaction, and miners prioritize and process transactions based on the fees offered. Transactions with higher fees take precedence, while those with lower fees are processed later. This means that during congested periods on the Bitcoin network, users may need to pay higher fees for their transactions to be executed promptly. In the past, average transaction fees on the Bitcoin network have reached as high as $60, and this year, due to the popularity of BRC-20 tokens, average fees briefly surpassed $30.

Due to the slow transaction speed and high transaction fees on Bitcoin's native network, using Bitcoin for everyday payments is not cost-effective. However, the Lightning Network has changed that. On the Lightning Network, transaction fees for a $100 transaction will not exceed 1 cent, greatly reducing transaction costs and making Bitcoin a feasible option for everyday payments.

2.3 Lowering Transaction Barriers


Everyday payments often involve small, frequent transactions. Over the past three months, the average transaction fee on the Bitcoin network has hovered around $2. When the cost of fees may exceed the price of the item you are purchasing, Bitcoin becomes an impractical choice for payment.

The Lightning Network significantly reduces transaction fees, rendering the impact of fees on the price of your purchases negligible. This lowers the threshold for using Bitcoin in transactions.

3. How the Lightning Network Works


The Lightning Network operates through payment channels, where users establish peer-to-peer payment channels to form the Lightning Network.

To conduct transactions, both parties establish a payment channel between themselves by sending funds from the initial transaction to a multi-signature address. This multi-signature address is managed using private keys from both parties and requires their signatures to create new transactions.

This multi-signature wallet serves as a duplicate record of the assets. Transactions generated by both parties are recorded in this duplicate. When the channel is closed, the results recorded in the duplicate are broadcast to the blockchain for final settlement, and the remaining balance is recorded on the blockchain.

Let's illustrate this with a simple example:

A and B want to transact via the Lightning Network. To do this, they must first establish a payment channel and store funds in the wallet for this payment channel. The wallet is jointly managed using the private keys of both A and B, and it can only be opened upon confirmation from both parties.

As mentioned earlier, the multi-signature wallet serves as a duplicate record of the assets. Transaction records between A and B are stored in this duplicate. When A and B no longer engage in transactions and choose to close the payment channel between them, the final transaction result between A and B is sent back to the Bitcoin network for confirmation.

Now, let's introduce a slightly more complex scenario by introducing a new participant, C.

A and B want to transact via the Lightning Network, but in this case, they do not have Lightning Network established between them. However, C has separate payment channels with both A and B.

In this situation, A and B can route their transaction from A to C and then from C to B, with C acting as an intermediary. While A and B cannot transact directly, C eliminates the need for them to establish a new payment channel between themselves.

The transaction ultimately occurs between A and B, but it is facilitated with the assistance of C, allowing C to set and collect a certain routing fee for facilitating the transaction between A and B.

4. Disadvantages of the Lightning Network


4.1 Entry Costs: There are costs associated with entering the Lightning Network, making the process of transferring funds onto the Lightning Network relatively expensive.

4.2 Liquidity Issues: If your counterparty has no balance in the channel, you will not be able to receive or make payments. While specialized Lightning Network service providers now address this liquidity problem, it introduces potential centralization issues.

4.3 Vulnerability to Hacks: Payment channels, wallets, and application programming interfaces (APIs) are all susceptible to hacking attacks.

5. The Future of the Lightning Network


Despite its existing shortcomings, the Lightning Network continues to develop rapidly. As of now, there are over 16,000 Lightning Network nodes, and its promotion and popularization have made significant contributions to payments and social domains.

Social project Damus supports Lightning Network payment and tipping features. Digital payment platform Strike, in collaboration with Shopify, Blackhawk Network, and NCR, has established a Bitcoin payment system that allows merchants to swiftly receive USD after customers pay with cryptocurrencies. Following El Salvador's recognition of Bitcoin as legal tender, the Lightning Network has been promoted for use within the country.

The emergence of the Lightning Network represents a significant step toward enabling Bitcoin for everyday payments. Current issues are actively being addressed by Bitcoin community developers to further enhance the Lightning Network.

In conclusion, when we discuss second-layer networks, we often refer to Layer 2 networks on Ethereum. If you are interested in learning more about Ethereum Layer 2 networks, feel free to give "Understand Ethereum Layer 2 in One Easy Example" a read.
市场机遇
Lagrange 图标
Lagrange实时价格 (LA)
$0.06004
$0.06004$0.06004
-2.03%
USD
Lagrange (LA) 实时价格图表

热门新闻

查看更多
Coldcard Mk3 警告紧随 3800 万美元 Bitcoin 被扫荡事件,但原因仍未确认

Coldcard Mk3 警告紧随 3800 万美元 Bitcoin 被扫荡事件,但原因仍未确认

比特币硬件钱包制造商Coinkite已警告用户,Coldcard设备存在种子生成问题,影响从4.0.1版本起的所有Mk3固件版本。该警告是在安全研究人员调查一起涉及594.48 BTC(约合3,800万美元)的协同转移事件时发出的。然而,目前尚无公开的技术证据证实Coldcard的问题导致了这些转账。

Bitget 将退出日本:面向日本居民的服务将于 2026 年 12 月 31 日终止

Bitget 将退出日本:面向日本居民的服务将于 2026 年 12 月 31 日终止

Bitget 将于 2026 年 12 月 31 日终止对日本用户的服务。受影响的用户必须在截止日期前平仓并提取资产。

万事达完成对BVNK的收购,交易金额高达18亿美元——稳定币进入全球支付核心

万事达完成对BVNK的收购,交易金额高达18亿美元——稳定币进入全球支付核心

万事达于2026年8月3日完成了对稳定币基础设施提供商BVNK的收购,此前已于三月宣布该交易。

DEX对CEX现货交易量比率达24%,中心化交易所活动减弱

DEX对CEX现货交易量比率达24%,中心化交易所活动减弱

根据 The Block 的当前数据系列,2026年7月,去中心化交易所现货交易量与中心化交易所现货交易量之比达到24.14%。该数字并不意味着 DEX 控制了合并现货市场的24.14%:它意味着 DEX 交易量相当于数据集中包含的 CEX 交易量的24.14%。与此同时,DEX 现货交易量环比下降约26%,至约1307.7亿美元,为近两年来最低水平。

注册MEXC账号
注册 & 获得高达10,000 USDT奖金

加入 MEXC 社区

通过我们的官方 Telegram 频道,实时获取最新上币、活动和动态。

25k+ 位成员

合约

BTC/USDT
ETH/USDT
GOLD(XAU)/USDT