Using  the Electronic-Hourglass Kit 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 Electronic-Hourglass Kit.

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.

PCB: 1.6mm double side

LED: 3mm blue LED

Board size: 84*40mm

Power supply: 5V