About 87% of all the Lightning Network nodes are LND nodes. In comparison, about 11% are C-Lightning, and only 2% of the remaining are Eclair, according to the latest report by members of the Faculty of Computer Science from the University of Vienna, Austria, and Christian Decker of Blockstream, Zurich.
In the past couple of years, several implementations of LN have popped up.
In early 2018, Twitter CEO and bitcoin proponent Jack Dorsey-backed Lightning Labs’ CEO Elizabeth Stark, announced the initial release of LND for developers to make it available for testing purposes on the main Bitcoin network.
C-Lightning is Blockstream’s own implementation of the Lightning Network built in the C programming language.
Eclair is for those who want to set up a full Lightning Node, which needs a lot of computer know-how. With this approach, you are routing transactions on the network and can also make your own transactions.
Geographic distribution of LN Nodes
The report titled “Node Classification and Geographical Analysis of the Lightning Cryptocurrency Network” also found that a large share of the total Lightning Network nodes, 44.8%, are located in North America and close behind is Europe with 43.1% share.
In Europe, most of these nodes are located in Central Europe with a very high node distribution on both the East Coast and the West Coast.
The remaining nodes are located in Asia at 6.2% share, Oceania at 2.2%, and then South America and Africa, each having 0.8% and 0.6% of the Lightning Network nodes.
In Asia, most of the nodes are located on the coasts of South Korea, China, and Japan.
It has been further found that multiple node clusters are centered in metropolitan areas. For instance, in Germany, the largest node hub is located in the metropolitan area in Berlin and then Munich and Frankfurt. In Japan, this has been found true with Tokyo, Osaka, and Kobe.