Smart glass——A simple(ON – OFF)mode switches the glass from being clear (transparent) to frost (translucent). Three standard panel thicknesses are available 16mm, 20mm and 24mm (customizes upon request). This product is simple to install just like any standard double glazed sealed unit. Enjoy the benefits of insulated glass making your room warmer in the winter and cooler in the summer. This energy saving product is completely solid state requiring no maintenance or special cleaning requirements. Imagine living in a world which offer you complete control over your comfort/privacy and security all at the lick of a switch.