Fresnel for Convoy C8+

Hi. Im planing on buying a fresnel for my Convoy C8+ with Osram W1 LED. 40 mm x 28 mm on the fresnel.

Does someone got any experience in this?

There are a multiple of simillar products on Aliexpress.

I've watched these two: (See the pictures)

Should it be a big difference between the different products?

And will a fresnel work good with my host and LED?

THANKS for your help!🙏