3pcs DC 5V Green DIY LED Electronic Hourglass Kit Soldering Practice Spare Parts Module

Feature:

 

Working voltage: DC3.3-5V or 3*AA battery

Speed: Adjustable

PCB size: 74.4 x 43.7 x 24mm
Color: Blue LED
Manual: Click here!

 

Package includes:

 

3 x DIY Green LED Electronic Hourglass Kit