Review on 4Pcs 42Mm 5050 3SMD Canbus Error LED Festoon Bulbs - Perfect For Car Interior Dome/Map/Trunk/License Plate Lighting (Blue) by Doug Layman

Yes, they are very bright. I was very happy for a few months. I used these to replace the original dim bed cargo lamps on my 2020 Ram 1500. The lamps come on for 1 minute whenever you open any door. They were fantastic. After a few months, one started to flicker, I thought it was an unusual failure. I ordered a second set as a backup. Within a few weeks after the first failure, the second lamp started flickering. Darn.I finally got tired of both bulbs flickering. So, I just installed the backup set. Less than 6 months of usable life is way too short for a bulb that is seldom on. They would get 5 stars if they didn't both fail. I really like the brightness.Update: I have now updated the vendor/product from 1 star to 5. Right after submitting the original review, I contacted the vendor, and they got back to me within hours. They apologized, and shipped a new set of lamps as a replacement. That says a lot about their commitment and customer service. Let's se how long these last.Update: Well, they all failed within months. I've requested replacements. Annoying flicker, then dead.One day later: Botepon says 1 year warranty is over, so too bad. Each set lasts 4 to 5 months at the most.