Geekcreit? DIY Aurora LED Colorful Light Cube Chromatography Glass Clock KitSince 2015. 8. 17, this kit not included the batteryDescription: Use LED to produce different colors instead of numbers, if you need to know the current time, you may need some mental and memory activity (for example, as shown in the figure time is: 17: 31: 48). Additional upside down will be placed in "binary" mode to switch the display time. Also have the Gravity sensor four way gravity sensor switch various settings interface. use 10mm brushed
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