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  1. To test a 12V light bulb, you can use a multimeter. Here are the steps:
    1. Ensure safety by turning off and removing the bulb.
    2. Set the multimeter to continuity or resistance mode.
    3. Place the probes on the light bulb contacts.
    4. For a working bulb, the resistance should show some value.
    5. If the multimeter beeps during the test, the bulb is working; no beep means it's time to replace it12345.
    Learn more:
    To test a light bulb with a multimeter, ensure safety by turning off and removing the bulb, and then set the multimeter to continuity or resistance mode. Test the bulb for continuity and resistance by touching the probes to its contacts and then analyze the results.
    electrouniversity.com/how-to-test-a-light-bulb-with-…
    Start by placing the probes on the light bulb. One on the base of the bulb and the other on the side metal of the bulb’s base. Observe the multimeter’s display. For a working light bulb, the resistance should show some value, ideally not too far from the expected resistance of a good bulb.
    revolights.com/how-to-check-if-light-bulb-is-good-w…
    When you're testing a light bulb at home, there are two simple methods: Either test the bulb in a working fixture or use a multimeter. How do you know when a light bulb is bad? If the light bulb is physically broken or will not turn on, consider it broken. Or, test the bulb with your multimeter and check the reading.
    www.batteriesplus.com/light-bulb-tips/how-to-test-…
    When you’re preparing to test a light bulb, you’re going to focus predominantly on the continuity function of the multimeter. Continuity tests will tell you if there’s a complete path for current to flow through the light bulb. If your multimeter beeps during this test, you’ve got a working bulb. No beep usually means it’s time to replace it.
    revolights.com/how-to-check-light-bulbs-with-a-mul…
    Testing a light bulb with a multimeter is a simple process that can help you determine if the bulb is functioning properly. To begin, you will need to set your multimeter to the appropriate setting. For testing a light bulb, you should set the multimeter to the resistance setting.
    lastinglights.com/how-to-test-a-light-bulb-with-a-mu…
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