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In this video I will show you DIY led bulb repair tester which you can made very easily. smd led tv backlight testing also possible.
⭐components used⭐
👉XL6009 boost converter s.click.aliexp...
👉TP4056 charging module s.click.aliexp...
👉LED volt meter s.click.aliexp...
👉3.7v battery s.click.aliexp...
👉1K resister
👉Test probe
👉power switch