Lightning Release (雷遁, Raiton) is one of the nature transformations. It gives the user the ability to produce lightning. It is weak against wind, but strong against earth.
Pseudo-Lightning Release (偽物の稲光のリリース, Feiku Raiton) is a part of Rock Lee's pseudo-nature Transformations. Lee uses his own element to create his own Lightning Release. This is also a part of his pseudo-ninjutsu.