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This is a light with sensors which not only detect user’s movements but also follow user’s motions. It applies Helium to float in the air and bring the bright light. This device is a good helper when user are reading, walking in the dark or looking for bathrooms. If you don’t need it, just pull down the silver lining to switch off the lighting. Like famous said: Every cloud has a silver lining.
Shao-Huei Liou; Jing-Chun Chen; Tzu-Chia Huang