This wireless grid switch is compatible with MK grid plus system and can be installed into MK grid plus plates. It can be used with the standard or with the dimming ECO Series receiving controller. It has a built-in micro energy generator - when the switch is pressed the kinetic system transforms the movement into energy. The grid switch can be used from a maximum 20m indoors. There is no longer a need to make holes or channel out for switch lines in the wall if you use ENER-J's wireless switch. The grid switch is safe, convenient and extremely simple to install and use. Micro energy acquisition (MEA) module constantly generates energy, thus eliminating the need for a battery or mains power supply. Energy produced by the device is very small, so the communicating hardware adheres to strict requirements on low power consumption, wireless transmission and creates a highly stable environment.