What is the Bitcoin lightning network?

Tuesday, August 9, 2022

If you’ve looked into investing in Bitcoin, you may have heard about the Bitcoin Lightning Network. The Bitcoin Lightning Network refers to a secondary layer on the Bitcoin blockchain that enables users to make transactions off the blockchain - also known as off-chain transactions. This allows for increased scalability and speed since the main blockchain doesn’t have to deal with all the transactions.

The Lightning Network has been considered a game-changer in the world of crypto. It has already seen several successful use cases and is poised for a bright future.

While the Lightning Network has experienced tremendous growth, some challenges remain. Below, we’ll discuss everything you need to know about the Bitcoin Lightning Network, from its origins to its benefits and challenges.

The origins of the Lightning Network

The Bitcoin white paper was published in October 2008 by pseudonymous developer Satoshi Nakamoto. Seven years later, in 2015, developers Thaddeus Dryja and Joseph Poon released the first draft of the Bitcoin Lightning Network white paper (also known as version 0.5).

The draft outlined their concerns over Bitcoin’s scalability and capabilities to support high transaction volumes. The paper’s abstract describes an off-chain protocol consisting of payment channels where two parties can make transfers without clogging up the mainnet.

Initially, Bitcoin could only handle about seven transactions per second. For Bitcoin’s blockchain to handle thousands of transactions per second, the paper noted that it would need to manage eight gigabytes worth of transactions per block. Currently, the average block size for seven transactions is about 1 megabyte, or 0.001 gigabyte. 

In 2016, Poon and Dryja founded Lightning Labs, a company dedicated to developing the Bitcoin Lightning Network. Since its inception, Lightning Labs has worked to make the lightning protocol compatible with the main Bitcoin network.

A breakthrough came in 2017 when a bug was removed that allowed users to make fake transactions. As a result, Lightning Labs released a beta version of the Lightning Network in 2018.

In 2019, “Lightning Labs” was released to showcase the value of the Lightning network. Through this project, participants could connect through social media and pass “torch” payments to one another. Torch payments were passed over 300 times through 40 countries.

Now, the Lightning ecosystem comprises over 300 apps, projects, and companies, with tens of millions of dollars of capital being funneled into the space. Additionally, hundreds of merchants have started to accept Lightning payments.




How does the Lightning Network work?

The Lightning Network allows for peer-to-peer payments between two parties. For example, a customer could hypothetically make a payment to a restaurant owner using the Lightning Network.

Unlimited, instant transactions can be sent inexpensively, allowing people to pay with Bitcoin without clogging up the primary Bitcoin network. To make a payment, you first need to lock a certain amount of Bitcoin into the primary network. Once the funds are locked, the recipient can send invoices as they see fit.

The two parties can then continue to transfer funds between one another indefinitely without informing the main network. Because the transactions don’t need to be approved by all of the blockchain’s nodes, transaction speeds are substantially faster. When the two parties finish transacting, they can close the channel.

All the information from the channel then gets consolidated into one transaction, which is sent to Bitcoin’s mainnet to be recorded. This allows the nodes to spend less time and effort validating the transaction.

Bitcoin as payment?

Now, you might be wondering, why would you use Bitcoin as a payment when so many investors recommend holding onto your Bitcoin?

While Bitcoin has tremendous value as a long-term investment, there are also scenarios where it’s wise to pay with Bitcoin. Bitcoin payments on the Lightning Network offer low transaction fees and speedy processing, especially compared to fiat payments.

Bitcoin payments are also a smart alternative to traditional wire transfers, which typically involve high fees and exchange costs. In addition, because Bitcoin has no government or intermediary involvement, transaction costs are generally lower when compared to bank transfers, a huge advantage for travelers or small businesses with international clients and vendors.

Bitcoin payments are also mobile, meaning users can pay anywhere they have internet access. Additionally, personal information is not needed to complete a transaction, as is the case with bank and credit card payments.

You can also make Bitcoin payments without worrying about being subjected to the traditional banking fees typically associated with fiat currencies. Additionally, because Bitcoin is not a physical currency, payments are secure as long as you keep your private keys stored safely.

Use Cases

The Lightning Network has already proven incredibly useful to individuals and institutions. Here are some of its use cases:

Lightning Chat

Lightning Labs CEO Elizabeth Stark has identified online chat networks as an emerging use case for the Lightning Network. Although it wasn’t the original intention of the Lightning Network, the network is structured in a way that would allow it to serve as the base of an online chat network.

Lightning already has several chat clients at various stages of development, including Whatssat and Sphinx. As a result, lighting-powered chat apps could potentially offer greater protection against censorship and tracking compared to traditional chat apps.

Lightning Gaming

Gaming is another promising use case for the Lightning Network. The network has the potential to create new monetization models for gaming companies that give players full and instant custody over Bitcoin rewards earned during gameplay.

Lightning Network in El Salvador

In September of 2021, El Salvador officially made Bitcoin legal tender, becoming the first country in the world to do so. Thanks to this decision and the launch of the state app Chivo, the Lightning Network is now widely used in El Salvador.

Lightning Network in Latin America

From the moment El Salvador announced Bitcoin as legal tender, there was an immediate massive increase in Lightning Network adoption for the Central American country and the rest of Latin America.

In January of 2022, Strike launched a Lightning Network-powered app in Argentina that allows users to make cost-effective financial transactions. In addition, in July of 2022, OpenNode, a Bitcoin payments infrastructure platform, partnered with Lemon Cash, a popular Latin American cryptocurrency wallet provider.

Through the partnership, OpenNode will integrate the Lightning Network into Lemon Cash wallets, allowing faster and cheaper Bitcoin transactions.




Lightning Network Pros

The Lightning Network offers a host of different benefits. Here are some of the main pros of the Lightning Network:

Built for Speed

The Lightning Network does precisely what the name implies. It allows users to complete quick peer-to-peer transactions without waiting for block confirmations or for nodes to acknowledge a transfer. Currently, the Lightning Network can handle about one million transactions per second. This is quite an improvement compared to the mainnet’s average of seven transactions per second.


The Lightning Network has no minimum payment requirements, meaning you can transfer even the smallest amount of Bitcoin. Additionally, the network drastically reduces transaction fees, and users no longer need to worry about hefty processing charges on large transactions.


The Lightning Network allows users to send fully anonymous and encrypted payments. Transactions are not recorded onto the blockchain until the channel is closed and everything is completed and signed.


Users can easily jump through payment channels on the Lightning Network. For example, suppose User A is connected to User B, and User B is connected to User C. In that case, User A can transact with User C without opening a new payment channel.


Lightning Network Cons

While the Lightning Network offers plenty of benefits, there are some drawbacks to consider, including:

No Offline Support 

Offline transactions are not supported on the Lightning Network. Those without immediate internet access will not be able to participate in the Lightning Network, potentially limiting its accessibility.

Heavy Peer Reliance 

While the Lightning Network is fast, users still need to rely on the peers they’re transacting with to be responsive when transferring funds.

Reduced Fees Could Potentially Damage Bitcoin’s Sustainability

While some see lower fees as a positive, others see it as a drawback for the main Bitcoin network. Once all of the Bitcoin has been mined, transaction fees will become the sole financial reward available to miners overseeing the blockchain. Without these transaction fees, Bitcoin’s sustainability could be called into question.

Bitcoin’s Price Fluctuations

While the Lightning Network is often heralded as the future for making daily transactions, Bitcoin still has a long way to go before gaining mainstream traction. Price volatility is still a huge issue, which makes it difficult for companies to use Bitcoin as a payment method when pricing products or purchasing inventory. 


The Future of the Lightning Network

While the Lightning Network still has some kinks to work out, the future looks bright. 

Overall, adoption is on the rise for the Lightning Network, and over $110 million in Bitcoin is currently locked in the network. Many mainstream companies and financial platforms have been adopting the Lightning Network in 2022. This has increased the reach of Bitcoin by allowing users of these platforms to send Bitcoin instantly across the world.

In addition, as adoption grows, the Lightning Network can be used in conjunction with the crypto wallet functionality at a number of crypto platforms. 



Bitcoin’s Lightning Network is growing rapidly. As a result, we’re seeing more individuals, companies, and countries adopt this fast, affordable, and secure way of sending payments.

While the network does have some drawbacks, there’s no doubt that it’s helped solve some of the issues experienced on the mainnet. We should see network adoption continue to grow as more and more people realize the benefits of the Lightning Network.
If you’re looking to start purchasing Bitcoin and using the Lightning Network, sign up for SMART VALOR today.