LEDs flashing suddenly?
Hello everyone,
I have a lamp here that's been working perfectly for five years. Then, all of a sudden, it started blinking, or rather, flashing (see video). When you turn it on, it sometimes blinks normally, sometimes it blinks violently. Completely different.
When I measure the voltage, I find that the transformer delivers 45V when the lights aren't flashing. But when they flash, the voltage drops to 39V and the LEDs flash.
I'm just a layman in electrical engineering, so I wanted to ask where this comes from and how I can fix it?
http:// https://youtube.com/shorts/OMqwFXe9exE " frameborder="0
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5 years, then the LED driver is probably defective.
It no longer reaches the setpoints and shuts down because it has a protective circuit (against overheating and short circuits ). This short-circuit protection circuit probably triggers, shuts down, and tries again. These start-up attempts cause the flashing.
Unfortunately, these LED drivers don't last forever; they are subject to wear and tear (the built-in capacitors dry out!) and eventually fail. There are also quality differences among LED drivers that affect their lifespan, reliability, and safety.
It is a constant current source (CC) with 600mA (=0.6A) and at least 30W ,
DC voltage of at least 50V (secondary),
Primarily suitable for 230V AC (common in Europe!).
You'll either find the exact replacement part or an equivalent LED driver that fits your lamp. The technical specifications in bold are very important for finding an equivalent replacement driver.
Otherwise, you can give the lamp to a hobbyist or take it to the recycling center.
I would look for an equivalent replacement.
These drivers fit the technical specifications, but the dimensions must be taken into account:
https://www.gbk-shop.de/greenception-led-fahrer-30w-diy-kits-50v-600ma
https://www.it-tronics.de/sld30-600il-es-30w-600ma-25-50vdc-konstantstrom-led-netzteil-triac-dimmbar/
PS:
Here you can find the original LED driver:
https://sourcing.hktdc.com/en/Product-Detail/LED-Driver/3558731
Good luck!
as you describe, it seems to be the power supply. This is probably not just a simple transformer, but a bit of electronics, so that the alternating current becomes a direct current for the LED. Probably this LED driver has a Macke. Try another one or with a current source which supplies the corresponding values.