Common Faults of Electronic Ballasts

Failure to start the lamp / lamp not lighting
Poor connection, damaged internal components, faulty starting circuit, mismatched ballast and lamp.
Lamp flickering and unstable brightness
Voltage fluctuation, abnormal drive circuit, aging capacitors and unstable power output.
Overheating and high housing temperature
Poor heat dissipation, long-term full-load operation, high ambient temperature and overload.
Abnormal noise and hum
Abnormal high-frequency oscillation, loose parts, magnetic core aging and installation resonance.
Frequent protection, automatic shutdown and restart
Overcurrent, overvoltage, overheating, aging lamp leakage and short circuit.
Power attenuation and reduced UV intensity
Aging of internal capacitors and power tubes leads to decreased output power.
Moisture corrosion and circuit board damage
High humidity and corrosive gas cause circuit oxidation and electric leakage.
Burnout and breakdown (permanent damage)
Power surge, short circuit and wrong wiring cause component breakdown and burning.

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