Really bad experience. Recently i bought two H7 LED headlight from aliexpress.com with very low price (~2.5 euro/pair). replaced my halogen lamp right away. it was working fine for the first day, but only lasted for one day. 

the second day when i can checking again, the left one is down. it's not the worst, it seems that one is short-circuit and leads  the fuse goes off. now i have to open up that fuse box on the side of the panel and find out which one or ones to replace. Really sucks and we are lucky not caught by the police or get the car on fire on the road. I would never buy this kinds of things again. i will upload the picture of the item later when i am back home. 

I made a similar mistake with the Wifes car

As you say..Never again!

Fuse 50 (15A) if it's the right one that has failed, fuse 54 (15A too!) if left.  This link shows the positions, but your car being LHD I guess the picture is a mirror image of what you have.

Fuse 50 (15A) if it's the right one that has failed, fuse 54 (15A too!) if left.  This link shows the positions, but your car being LHD I guess the picture is a mirror image of what you have.

Thanks a lot. 

No problem.

LEDs are often sold on ebay without the vital heatsink. In my experience the cheap LED  is often of reasonable quality but the mechanical bits around it may not be. Usiing powerful LEDs is all about getting the thermal solution right.

 

A LED powerful enough to replace a H7 headlight unit would need a significant heatsink.

 

Anyone who has played around with PC CPUs and associated coolers will know that they can easily be mis-fitted so that the heat isnt being taken away and they shut down. LEDs are not intelligent devices so rather than shutting down they burn up,  may go short circuit and take out your fuse.

 

I would suspect that over heating caused your failure rather than inherent poor quality of the LED device itself.

As said above, an LED powerful enough to replace your H7 dipped beam is going need a serious heatsink, and good airflow over it to remove the heat produced.

 

The sealed headlight on a Fabia is not ideal for high power LEDs as there is no airflow whatsoever.

 

The latest cars with LEDs as standard (SEAT and Audi) have active cooling on the LEDs to ensure they don't burn out.

As said above, an LED powerful enough to replace your H7 dipped beam is going need a serious heatsink, and good airflow over it to remove the heat produced.

 

The sealed headlight on a Fabia is not ideal for high power LEDs as there is no airflow whatsoever.

 

The latest cars with LEDs as standard (SEAT and Audi) have active cooling on the LEDs to ensure they don't burn out.

maybe this is why they don't sell many "official" aftermarket LED h7 in local shops because it will the CE or similar certification test

Edited 12 August, 201510 yr by crazybeeliuzhe

There are no certified aftermarket ones (like HIDs) because they don't produce light in the same way as halogens so the beam shape isn't correct. I'm amazed they can produce anywhere near the 1500 lumens output that halogens do.