Homemade Innovation that will help you a lot, you Can Do it yourself

Hello Geniuses in this video i m gonna show you How to make a led voltage tester, You Can Make At Home its very Simple Lantian 1S 3. 7V 4. 2V 0. 4A LED lamp beads Backlight Tester Tool Smart Fit Voltage for All Size LCD Hope you enjoy this Simple innovation If you enjoyed don t forget to leave a like and a comment and Subscribe to join channel. and enable notifications Previous video