Types of Ethereum Nodes: Full Nodes vs. Light Nodes

The Alchemist Playbook: A Guide to Upgrading Ethereum Nodes | by Omar Ceja  | Alchemy | MediumEthereum is a blockchain technology that has gained significant attention in recent years. It has become a popular choice for developers and businesses across the globe. Ethereum is not only a cryptocurrency but also a platform that supports smart contracts. It allows developers to build decentralized applications that run on the Ethereum blockchain. In this blog post, we will explore ethreum node – what they are, how they work, and how to set them up.


To understand Ethereum nodes, first, let’s understand what a node is? In the context of blockchain technology, a node is a network participant who connects to the network, receives and sends transactions and validates those transactions. Nodes are essential for regulating the blockchain network. There are three types of nodes in the Ethereum network: Full nodes, Light nodes, and Archive nodes.


A full node is a node that stores a complete copy of the blockchain. That means it has all the transactions and smart contract codes and is capable of validating transactions. A full node has high processing power, and it requires a large amount of storage space. However, it is the most secure form of the node as it does not rely on any other node in the network.


Light nodes are lightweight nodes that can verify transactions without storing a complete copy of the blockchain. They rely on full nodes to provide them with block header information. They are less resource-intensive and suitable for mobile devices and low-power devices.


Archive nodes are full nodes that store a complete copy of the blockchain’s entire history. They are capable of storing every transaction ever occurred on the blockchain. They are resource-intensive and require a significant amount of storage space and processing power.


To set up an Ethereum node, you need to download and install a client software that communicates with other nodes in the network. There are several Ethereum client software available, such as Geth, Parity, and OpenEthereum. Geth is the most popular client and is widely used by developers.


To sync a full node, you need to download the entire blockchain, which can take several days or even weeks, depending on your internet speed and hardware. Once synced, the node can validate and broadcast transactions to other nodes in the network. It is essential to keep the node running 24/7 to contribute to the network’s stability and security.



In conclusion, Ethereum nodes are essential for the proper functioning of the Ethereum network. They play a crucial role in validating and processing transactions. If you are planning to develop decentralized applications on the Ethereum platform, it is essential to have a clear understanding of Ethereum nodes. You can choose the type of node that suits your needs and set it up to contribute to the network’s stability and security. Understanding Ethereum nodes may seem daunting, but with the right resources and guidance, you can become proficient in setting up and running an Ethereum node.