The emergency light went off suddenly, so it suddenly lit up
The warranty period shall be replaced or returned in time for free maintenance
If the above situation is ruled out, that should be brighter than other emergency lights, or flashing, because of quality problems
There may be intermittent outages or lack of grid voltage in the grid
Special case: when the grid voltage is below 187V, it also enters the emergency state.
Emergency lights only automatically switch to emergency when the power is off or turn off
