Use a 5W light bulb, which is very bright and can help you test the circuit better. This bulb is common to car bulbs and can be replaced directly. 【New Multi-Function Digital LED Test Light Automotive】.
ANCEL PB600 12-24V Automotive Electrical Circuit Tester Power Circuit Probe Tool
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Automotive Electrical Circuit Tester Open Short Wire Break Finder Kit DC 6-42V
