One of my considerations when researching a new light - if the Samsung diodes listed in any light were actually true Samsung.
I found many sellers listed as using Samsung but without being a Samsung official partner. Now maybe it’s a marketing scheme from Samsung so they can charge the official partners a premium to use the logo, not sure. Either way, if they are listed on the Samsung website, you have assurance you’re getting what is listed in the ad.
I ended up with two Mars Hydro FC 3000 (non EVO, LM301B) from AmZone marketplace. Used-Like new. $179 each. Quite a deal. Looked like they were never taken out of box. So far happy with my purchase.