When I first installed them in Jan 2019, they were decent.Fast forward to today, and one has failed while the other 'winks'.30,000 to 50,000 hours? No way is that going to happen. I've only run 2400 hours since 2006 when the truck was new.Find another seller / brand. There's no way to contact them for a replacement, and they do not last as long as they claim.