The Hourglass Lantern works like traditional hourglasses but turns the thousand year old tech upside down (literally) by using LEDs instead of sand.You can even adjust how long it takes for the light to flow from top to bottom by twisting the two halves like a dial.As time passes, luminance decreases on top as it increases on bottom.
Designer: Young Bok Kim,It brought light to you, if you bring on the thinking about the time?
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