How to test complete circuits in fluorescent fixtures this can be done in two ways.
Light bulb test circuit.
Often it takes the form of a screwdriver with the lamp connected between the tip of the screwdriver and a single lead that projects out the back of the screwdriver.
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By connecting the flying lead to an earth ground reference and touching the screwdriver tip to various points in the circuit the presence or.
The first one involves opening the wiring compartment and testing for 120vac hot to neutral and hot to ground on the wires coming into it.
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