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The fire emergency light is always on and cannot be turned off, which may be caused by the following circumstances:

One, the fire emergency lights inside a capacitor was broken down, resulting in a short circuit, so there is a light

The phenomenon of being normally bright and unable to be closed;

Detection method:

Remove the three-pin plug of the fire emergency light (two-headed emergency light) from the socket. Before the plug is removed,

You can press the simulation button above the luminaire panel repeatedly if the emergency luminaire is always illuminated

Can not close, then remove the plug;

There are batteries in the fire emergency light, which may be caused by the electrical circuit, but the batteries are not

When affected, the lamp that has been disconnected from the power supply will continue to light and discharge until the power is exhausted;

When the power is off

Take apart the back cover of the lamp for testing;

It is suggested that the focus of the inspection should be on the circuit of the fire emergency lights.

Reasons why fire emergency lights are always on:

The reason why the fire emergency light is always on, as mentioned above: it may be the capacitance of the emergency light

The breakdown;

When the mains voltage is extremely unstable, the electronic components of the lamp are subjected to intense high voltage

Electric shock, resulting in the instantaneous temperature of electronic components too high, breakdown short circuit.

The emergence of this phenomenon

The lamps and lanterns of old national standard may be a few more;

The new national standard series of emergency lights have perfect overcharge protection function and are original

Constant current voltage charging technology, all using transformers, with small power consumption, high efficiency, stable performance, safe and practical, and the brightness of the old national standard form of fire emergency lights 10-50 times, to meet the needs of various places.