How to make LED Tester at Home easy way

[@Ken-ei8xf]

Hi, I have been following you video, to build this led tester, good until you connected a green wire and a white wire without pointing out which is pos and neg, then as you screw the back panel on, you have grey and white and still no, Neg or Pos. Oh well, I guess I’ll just have to connect it and experiment. I am only a novice to electronics. Thanks for the idea.

[@technicalsaikat9479]

Thanks, please support me 🙏