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Somnus Lamp is a green energy saving lamp hourglass, is a sleep Lamp.It is a green concept design.Consisted of an hourglass, LED, generator and metal sand , it can provide their own power to enable LED lights up. When help hourglass upside down ,because of gravity, sand may shed from above resulting the impact of the following generators, which can transform the kinetic energy into electrical energy to light the LED up. LED lights will become darken slowly with the increasing covery of sand .Somnus Lamp from light to dark and then go out in 30 minutes When people need to re-use it once again can reverse the hourglass directly
South China agricultural university
College of Art