The available means for changing the opacity of such Switchable Electric Glass is via wall switches
, remote controls, movement sensors, light sensors or timers. Quite often intelligent glass installations are used to create boardroom and showroom spaces at the flick of a button and whilst giving areas an open and bright feel when not in use. Such privacy applications can be particularly useful in regions where there is a cultural prerogative to increase privacy such as the Middle East and some parts of Asia.