Although Japan is a disaster-prone country, there were few emergency products available there that were suitable for modern society. This inspired the designers at Elecom to develop this product. The most innovative feature is that you can use it as a very effective lantern in the event of a disaster by connecting it to a plastic water bottle. It can also be used as a flashlight with four levels of luminance and an SOS mode. Finally, you can use it as a mobile battery for charging smartphones or other devices.