A simple circuit that can help you repair an LED

This tool can prevent short circuits when the polarity is wrong because there is a diode bridge, and can work by automatically adjusting the volts needed on an LED, the voltmeter will also show the working voltage on an LED.
This tool is only suitable for checking LEDs with small voltages, such as HPL LEDs, strawhat LEDs, SMD LEDs, and others.
(If used to check LED lights above 5 volts, the voltmeter will only show the minimum working voltage)
Component
1. Digital voltmeter
2. Diode bridge
3. 1K ohm resistor
4. 12 Volt Adapter
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[@asepsaefudin1092]

Kalau punya voltmeter yang cuma ada 2 kabel apa bisa di modif jadi seperti tutorial tersebut.? Mohon pencerahanya dan ferima kasih.

[@NusaeTronic]

Untuk seperti di video kalau menggunakan voltmeter 2 kabel sementara ini belum bisa bang 🙏🏻, soalnya yang 2 kabel hanya menyediakan informasi tegangan tunggal (supply aja), kalau yang 3 kabel sudah dilengkapi untuk pengukuran tegangan keluar