How to change this light bulb?

Question

Electronics

Answer 1

Disconnect the device, unscrew the screws, unscrew the wires while holding the device. Replace with a good one in reverse order.

Answer 2

find a burned-out LED (3-volt battery or power supply unit and a couple of wires),
solder it out and push in the same live one.
I'll assume that it's burned out on the top line with a black dot.
on average, for brightness on such lamps, the current is overestimated and the burnout of the LEDs from overheating will be constant.

Answer 3

In the center is the power supply, six lamps (six strips) are connected in series to it.
1. Check the voltage at the PSU output, be careful here, it will probably be 6x12 = 72v
2. If the PSU is alive, you need to look for which element of the six is ​​not working.
Here you can try to power each element from another DC source, let's start from 5v.
If a dead PSU, repair it, or it's easier to find a similar one in terms of parameters. Or measure the resistance of each strip, if one is different - it is a bit.
4. Replace the strip or the LED in it ....
In general, the strips are similar to the usual LED strips that are fashionable to buy cut into pieces .....
PS there is another forbidden trick to determine - I'll tell you if nothing happens

Answer 4

No, this is a one-time cheap device, there are no parts that can be changed.
If you like the ceiling and this one is no longer for sale, then you can try to carefully remove the insides and put new LED modules there, the simplest thing is like this https://apeyronled.ru/product/02_16/
there you only need to connect 2 wires, and the module itself is attached on magnets to the iron case.