KKmoon 4-digit DIY Digital LED Clock Kit Light Control Temperature Display Transparent Case Blue Ideal digital clock DIY kit for electronics enthusiasts, easy to install. With transparent case, components can be well protected and the clock looks stylish. Light control, the clock will automatically be brighter during the day than during the night. Large 4-digit LED display, can show you time and temperature. With a USB cable, it is convenient to be charged.