1Set DC 5V 30 Lights LED Electronic Hourglass Kit DIY Double Layer PCB Board Components Soldering Practice Suite

Features:
High-quality double-sided PCB board is used, and the circuit is composed of LED hourglass patterns.
Under the control of the single-chip microcomputer program, it presents a simulated hourglass effect.
A micro switch adjusts the speed of the hourglass and lights up the LED light.
It can be used as a decorative lamp with low power consumption, environmental protection and energy saving.
The assembly process can greatly exercise your hands-on ability and cultivate interest in learning electronic technology.

Specification:
Material: metal
Size: 2.95*1.73in/7.5*4.4cm
Color: red green blue

Package Includes: 1 set

Notes:
Please allow minor errors due to manual measurement.
The colors may be a little difference for the different monitor display.