Usar la aplicación APKPure
Obtener Lightning Launcher - Español versión histórica en Android
Rayo Launcher - Español
Español language pack for Lightning Launcher
Many thanks to Franco Albornoz for the initial translations, as well as TrianguloY for all the work done since.
Translations are a living project. They can be found and improved here: http://goo.gl/1RzBI