Panasonic 1,000 LED Lights Brightens Tokyo's Sumida River

Recently, Panasonic has lit up around 100,000 ‘wishing star’ LED lights on Tokyo's Sumida River to embrace the ‘Symphony of Light’ event.

The two-day event was held on the bank of the river, which runs through central Tokyo. The company, which announced record losses of £3.4bn, created the art installation alongside the lights of the Tokyo Sky Tree as part of the Tokyo Hotaru (Firefly) Festival.


For the event, Panasonic created a special kind of orb called an "Inoriboshi" (prayer star) that incorporates one of the company’s HIT photovoltaic cells, a rechargeable battery, and an LED chip, enabling the lights to store energy, reducing the impact of the event on the environment.

A sensor on the orb’s bottom causes it to light up when it's placed in the water. Also, just to assuage any environmental concerns, all the orbs were collected with a net downriver so that they can be re-used.

And the lights were all collected to be reused again following the completion of the event, the lights were all collected to be reused again.

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