• BPnet
  • ビジネス
  • PC
  • IT
  • テクノロジー
  • 医療
  • 建設・不動産
  • TRENDY
  • WOMAN
  • ショッピング
  • 転職
  • ナショジオ
  • 日経電子版

LED Lantern Powered Only by Water, Salt

An LED lantern that can be powered by water and salt

An LED lantern that can be powered by water and salt