Sun & Solar Powered Clock

Light Gap is a concept clock with solars cells on its backside. You stick it on a window so sunlight can illuminate the slit on the face to form the hour hand. As day moves into night, batteries kick in to illuminate a row of LEDs in the slit, thanks to the aforementioned solar cells.

Light Gap is a Red Dot Concept Design 2010 winning entry.

Designers: Chengyuan Wei, Fangtian Ying, Duyin Qin, Pengxiang Jia, Fan Zhang, Huabiao Shan, Yu Zhang, Chen Zheng, Guanyun Wang & Lifu Yao

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Radhika Seth
Radhika Seth is a design and technology writer with over 18 years of experience covering products, innovation, and the ideas shaping design. She serves on the jury of international design competitions, including the iF Design Award, and hosts Yanko Design’s Design Mindset podcast. A former Ogilvy advertising professional, she has also taught Communication and Design Journalism, bringing together her experience across design, storytelling, brands, and media.