Automatic Voltage Changing LED Tester

Circuit Diagram

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Scroll down to the bottom of this page for the component list 👇👇

Component list

230V to 12V x2 300mA Transformer
R1,R2 : 330 Ohms 2W
C1 : 2200uF 50V
KBP307 bridge rectifier
Multimeter Probes

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Comments

One response to “Automatic Voltage Changing LED Tester”

Leoneldis acosta Garcés

September 8, 2025

Exelente trabajo

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