Hello, automotive test lights are only used on 12 volt circuits, do not use it at home. Houses are 110 volt, you will burn the test light out, and probably get a shock. Testing a car, you need to touch the bare wire or the end of a connector. If there's insulation on the wire it won't read. You can use an amp clamp around a wire to measure current flow because it reads the magnetic field on the wire.
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Wednesday, November 27th, 2019 AT 12:48 PM