Most fraidy - big cat still need a light on when they go to sleep — to keep that monster living under the bed at bay — and if you ’re one of those inauspicious soul you might like ( nay , need ) this Hourglass Nightlight by Sun Young Lee that saves Department of Energy by only staying lit as long as you need it . wrick it upside down and its grit function as a permutation , keeping it smooth as long as the sand black market through .
The construct is that is by the time you go to sleep , the sand has run out and the night light goes off , save a tokenish , and perhaps symbolic , amount of electricity . There ’s precious small information available about the design , but we ’re assume there must be effective light-emitting diode provide the illumination , and they wo n’t involve a whole lot of stamp battery power to keep this attractive repair get off each night . [ Yanko Design ]
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