Using light-emitting diodes instead of sand, this project simulates the movement of an hourglass. Works like a real hourglass, the upper part of the sand (light emitting diode) goes down one by one, the lower part of sand piled up one by one. After the drain is completed, click the switch to restart your hourglass.
The jog switch can adjust the hourglass speed, max. 28 LEDs lit at the same time
Can be used as a decorative night light, power consumption less than 0.5W, is very environmental protection and energy saving.
Electronic Hourglass DIY Kit Feature:
PCB: 1.6mm double side
LED: 3mm blue LED
Board size: 84*40mm
Power supply: 5V
Note: This is a DIY kit, you need to assemble it.
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