The LED ceiling lights in the hall are half on, and half are constantly flashing

It should be that the light source in the luminaire is composed of two independent LED strings, and the situation occurs when one or more LEDs in one or more of the strings are damaged; Only two wires of the driving power supply are connected to the lamp, and then the power supply is supplied to the two LED strings respectively in the lamp, so it should not be a problem of the drive, otherwise the whole lamp will not be lit.

This means that your light switch is not connected to the live wire, but only the neutral wire. Since the LED is dimly bright, the current used can be very small. Therefore, when the live wire is not disconnected, the induced electricity can also make it faintly bright. >>>More

The voltage required for LED lights is particularly low, so the emitters are connected in series, so one is broken and the other is not lit.

I don't know how many drivers you have in this lamp, from the fault phenomenon it looks like it is caused by poor contact, it is recommended to check all the lines to see if there is any bad contact, reconnect it, open the driver, and see if the circuit board inside is warped or broken. Re-weld.

Generally, LED crystal lamps have several drivers, which may be broken and can be returned to the factory for repair within the warranty period.