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Always Sunny / A solar battery

Always Sunny
Always Sunny

The solar auxiliary battery stand is the product designed to use the light even at night, especially in countries where electricity is not generally available. In the daytime, just remove the battery and hang it to your bag or belongings to charge the battery. At night, you can connect the battery to the stand and use it.


Hongik University

Hongik University
Sejong, South Korea

Kyeongyeon Yun,
Hongik University