Xenon to Led conversion

[Techktonik]

Hi Guys,
I'd like to ask if somebody successfully replaced xenon bulb with led bulb.
I've bought these for direct swap, but when I try to start the headlight it turns off automatically.
Also I haven't cut any cables or so, just replaced the bulbs by using the original ballast.
I guess I might be supposed to some other changes or buy another workings bulbs.

Any help appreciated!

[Techktonik]

here's link to the product: https://www.aliexpress.com/item/1005005244903986.html
also the car is Octavia 1.8T 2003, thanks in advance

[Dean]

Different rules in the UK and these would be illegal. There will be no beam pattern and I'm pretty sure that'll fail an MOT (agian, in the UK).

Nothing wrong with DECENT DS2 bulbs from Nightbreakers or Philips.