Electrical – Dimmable LED lights flashing on full power

dimmingled

This is quite specific but i don't know another site to ask this on.

Symptoms:

I have a driver that has 3 settings, off, dim and full. The lights turn on and work on dim but on full they flash.

Light specifications:

24V dimmable, constant voltage.
The lights flash when at full 5m length and when cut down to 1.5m.
https://www.amazon.co.uk/gp/product/B018UHCEZ8/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

Driver specifications:

24VDC, 0~1.25A, [30W max] edit: 10w max
(https://d2ydh70d4b5xgv.cloudfront.net/images/a/1/brand-new-ikea-ansluta-electronic-transformer-white-24v-led-power-sup-502-883-39-dc26b7becc947853aea78ec4ebc8c408.jpg) this is not the same as my specs

Any help would be appreciated.

Edit:
I apologise i made a mistake, the specs on the driver is 10w max

Best Answer

The first link to Amazon states in its specifications that the string at full length runs at 40W. And before your edit, you believed it was driven by a 30W LED power supply. The 30W supply would have explained this behavior at the full 5 meter length, but not when cut down to 1.5 meters.

Now that your edit states that it is only a 10W supply (can you explain? the link still shows a picture of a supply with 30W labeled on it), that would explain the behavior at 1.5 meters as well. Between the specs online and your 9.5W/m number, that would still put the power need somewhere between 12-15W.

@vitcatcu put the correct name to this effect - hiccup mode due to overcurrent protection.

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