You should limit the FET too. That LED is only good for ~5A so even a GA is probably going to overdrive it. All that info is in this thread: OSRAM CSLNM1.TG & CULNM1.TG 1mm², CSLPM1.TG & CULPM1.TG 2mm²
It’s also the reason Emisar scrapped doing it themselves. I think they will re-do the driver and release a larger D1S soon with it though.