The SHA4XWLS4 is a wireless light switch with 4 buttons and 4 LED outputs. It is developed to be mounted into a 44 x 44 wall socket from Niko, Fuga and Biticino. The light switch has two colours of LEDs; red and blue, indicating the battery and wireless signal level. The light switch is part of the smart-house concept for building automation applications and can be used to control lights, roller blinds, and all other functions supported by the smart-house controller. It is fully programmable via the SH tool and must always be coupled to a SH2WBU230 module.