What are house & electro nights?

Electro house - a subgenre of house music that has had influence from 80's music. Though its origins are hazy - different sources claim influence from 80's-electro, electroclash, pop, synthpop, or tech house - it has since become a hard form of house music, e.g. Steve Angello, Steve Aoki, Basement Jaxx, Beduk, Benny Benassi, The Bloody Beetroots, Cedric Gervais, deadmau5, Wolfgang Gartner, Justice, Erdem Kinay, Yasutaka Nakata & Zeddext.