Solar photovoltaic company
In the daytime the panel acts as a shading element, letting through about 10% of the sunlight while the solar cells generate electricity that is stored in the batteries. At night the electricity powers the LEDs without suing an external power supply.
Sharp intends for this device to be used in commercial and residential environments, such as bus shelters, offices, conservatives, glazed external walkways etc. Lumiwall will be produced in Japan and will be introduced globally in mid 2005.