A light blockchain refers to a version of a blockchain that does not store the entire history of transactions, making it more efficient for users with limited resources. Instead of requiring a full node, which holds all blockchain data, a light node only downloads a small part of the blockchain. This allows it to quickly interact with the network without needing to process and store vast amounts of data.Light blockchains are particularly useful for mobile devices and applications where storage and processing power are limited. Users can verify transactions without fully downloading the entire blockchain, leading to faster synchronization and lower bandwidth consumption.These systems enhance accessibility, making it easier for more users to engage with blockchain technology without needing powerful hardware. However, light nodes often rely on full nodes for data validation, which can introduce some trust issues. Overall, light blockchains provide a practical solution for users who want to participate in a blockchain network without the resource demands of a full node.